Car blinkers. Not everyone knows how to use them but when you do use them, people know which direction you're turning so everyone can avoid an accident.

The page number in a book represents which page you are currently on.

Imagine people fighting in a club to yeah by usher lmao

That person talking about the clock doesn’t realize that everyone understands what they’re talking about

Imagine thinking that knowing the "3 o'clock" and "6 o'clock" shit makes you an "in the know" type

So I could accidentally start a war by painting 187

2319. When a sock escapes and into the workplace at the monster's inc Door factory.

A motorcyclist tapping the top of their helmet means there's a cop ahead

Many years ago an iron bridge collapsed in Quebec and many people died due to an engineering blunder. We wear the ring on the pinky of our dominant hand so that it touches every page we touch or sign off on. This is to remind us that we have a responsibility towards protecting the lives we impact through engineering. Wearing the ring is a pledge to uphold honesty, integrity, and professionalism.

For anybody who doesn't know: Green= You may continue/start to move forward Yellow= Caution, be prepared to stop Red= Stop all movement

I am a minor. Some years ago I had to travel by myself. I was the first one to board the plane. The pilot talked to me for a while and explained all the emergency protocols. The last thing he said was if anyone was bothering, I should order “the double chocolate cake”. This way they would know something was wrong and get me out of that seat.

When my husband went on his last business flight for work, the plane passengers were surprised when the safety drill was interrupted by the captain telling the cabin crew to be seated. Then the captain said 'Condition One'. A vertical take off followed. My husband believes the captain was told by Air traffic control, 'Take off immediately, because we must shut the airport.' The date was 11th September 2001, and the plane was on it's way to Amsterdam. Condition One means 'Do it immediately.'

_radio plays Yeah! by Usher_ *COWABUNGA IT IS*

There are a few codes we use in sketchy areas and such “I think I should get a new purse” = someone is eyeing your purse, hold it tightly “Did you get your nails done?” = I can see someone is following you, either you can follow me or you should have something as a weapon at the ready.

-just casually goes around LA painting 187 everywhere and starts a massive gang war

7:47 There's no reliable, universal way to decipher if someone is lying based on intonation patterns. Those vary a great deal across language varieties and among individual speakers.

3:34 I've been doing the hello nod to everyone I know ,it's just instinct .

Every Cruise Ship has a morgue, many elderly people choose to spend their last weeks, months and sometimes years of cruise ships 😊

Recently a car flashed their lights on and off at me to signal that my headlights were off. Also, in Japan if someone does something nice on the road, like slows down so you can switch lanes, then you put your emergency lights on for two blinks to say "thank you"

Aircraft squawk codes are a good one. The ones of note are: 7500 - hijacking 7600 - radio failure 7700 - any other emergency And also: Pan-pan: emergency which is no threat to life Mayday: emergency with immediate threat to life

*secret codes are honestly just inside jokes on a global level*

The clock one is obviuse to anyone watching movies with fight scenes in it because someone will say "on your 6" meaning he is behind you

You’re in the club, house music is blasting, when some guy decides to smack a drink out of your hand. A shouting match starts and you can tell that this dude isn’t going to back off. Adrenaline starts rushing through your body, you can feel the strength in your arms suddenly double, when out of nowhere the music stops and you hear lil Jon scream “YEAUHH, OKAY”. In that moment you realize......shits about to go down

Hate it when I'm calling _nine hundred and eleven_ but my goofball neighbour didn't call 811 before excavating his yard, so I get murdered 😭

Security codes. Code Adam is for lost child.

*son plays Usher - Yeah *"Ah schitt, here we go again"* "D-dad?"

Spies in 1960: Got a security clearence job. Spies in 2020: search AskReddit secret stuff.

In customer service at my meat market, if we say "we'll be right with you sir" it means "one if my coworkers better hear this and serve you because I'm busy right now."

Lmao that one who thought he was bestowing some incredible sacred knowledge on the clock directions. Calm down man, everyone knows that

Truck Driver here! Theres other codes we use on the CB such as “There’s one pointed at you” means there is a cop with a radar gun nearby and to watch your speed. Truck drivers are a brotherhood. I love my profession.

What was up with the weirdo talking about grass and decaying citrus

In restaurants “86” means “get rid of it” anything from “86 shrimp” means we are out of shrimp to “86 table 60” means kick out table 60. I work in a kitchen in the south and the “in the weeds” one is beyond true

The upward nod (most common among teen boys and young men) is basically the extension of an eyebrow raise - it's usually done instinctually and indicates that we recognize the person and are not hostile toward them. The downward nod is a miniature bow - the equivalent of a polite smile or friendly handshake.

In Hawaii when you wear a flower behind your ear it can mean two different things. Right is available Left is taken

5:22 I remember this as pebkac "problem exists between keyboard and chair"

when my mom says wait till we get home, its code for "your gonna get a beating for making a fuss" oop

This is why you can’t trust mfs lol. They’ll spill the beans for Internet points

Bruh everyone knows about the "clock and direction" thing

The usher - yeah! one was hilarious to imagine.

9:42 Be careful with that one. Differs from hospital to hospital.

Airport: makes Mr Sands a code for emergency Mr Sands *showing up at the airport *: I’m about to end this man’s whole career

Family member worked in the ER. When someone brought donuts to the break room, they would let everyone know by paging Dr. Duncan

I live in Alabama and My mom was a waitress for most of my life. I've NEVER heard anyone talk about Canadians while meaning black people? Like, what?

The man nod transcends cultures, languages and generations. You can make peace treaties and war declarations with the same neck muscles contracting.

12:45 That guy has to be joking, right? That's such a common thing.

At a hospital I was at the codes were: Code lavender- verbal aggression/ people yelling Code green- physical aggression/ people fighting Code blue- medical emergency The funny part was they usually all happened in this order. There was also "Dr. Book report to..." This meant a patient was making a run for it. Or as I like to say, they were *booking* it.

A 2319 is in when something from the human realm is brought into our monster realm, possibly causing an infectious disease outbreak.

the male 'nod code' is like,, an every person thing.. like the whole "display of dominance" shit has me rolling no it's just basic human gestures lmfaoo

11:48 Imagine being named "Mr Sands" and every time they announce your name everyone disappear...

If you ever feel unsafe whilst on a date or in a club etc. (i.e a woman meeting a man for the first time but you feel there's a sinister alterior motive), go to the bar and 'ask for Angela'. The staff will then discreetly call you a cab to leave/ escort you out of the fire exit without making too much of a fuss (trusting that they're in the know). Edit: just found out that in a lot of bars/clubs in the UK have posters inside the girls toilets about the 'Ask for Angela' campaign.

Lol the “Canadians in the south” one is a troll. I’ve lived in Alabama and Georgia my whole life and haven’t heard it

Hazmat Plaques super easy to read once you know...

Costco employee here. The price signs have several different codes that only employees and very savvy shoppers know about. If the price ends in .99, that means the item is being sold at it's normal Costco price, and is usually something we carry often. If the price ends in .97, that means the item has been marked down. If the price ends in .00 or .88, that means the manager wants the item sold ASAP and has marked down the price significantly. This is usually reserved for items low in stock or items that have been returned. If the price ends in .49, .79, or .89 then the manufacturer has given Costco a special promotional deal and you'll be very unlikely to find that product for a cheaper price elsewhere. If there is an asterisk (*) on the top-right corner of the sign, that means Costco has discontinued the item, and you should stock up before the item is gone for good. This is true for US stores, but I'm unsure what the rules are in international Costcos.

The clock 5hing is a code? I thought it was common sense! Jeez...

the code for a riot at a dance club should be the song Panic At The Disco

Okay the waitress one about “Canadians” isn’t true. I was a waitress for over 6 months and two different restaurants in southeastern Kentucky, and whenever someone talked about Canadians, they meant actual Canadians driving to and from Florida. Unless I was totally oblivious to it 😂 in the weeds is a real thing, but most southerners say that, not just waitresses

Here is some very useful codes. BEE! - There is a bee near you. Run. SHARK- There is a shark in the water, get out fast but don’t splash because you don’t want to become a sampler plate.

I call K18 PICNIC instead. "Problem in chair, not in computer."

I was security for a supermarket in the UK. We had a PA code, if there was an unaccompanied child. If we had the parents name, we'd say "call for [insert name] at customer service" there was also a "Staff call for Mr Robinson's" the store never had a Mr Robinson work there, it meant were being robbed.

That first one about cancelling something works pretty well. My father one day noticed that the internet wasn't fast enough for all of us, so he complained on the phone and said he was going to cancel the wi-fi plan and go with another company. We went from 10Mb internet to 60Mb for the same price. It's still 60Mb/s after 3 years.

At Walmart “Code White” is for a medical emergency. They called it when o told them not to and I was fine

I know one At some dinner places there's a sign that's says call for Angela. Most people or guys won't know this, but it's for, say if you were meeting up with someone that you met online and they're making you uncomfortable, you tell the person at the desk to call Angela and they come up with a quick excuse for you to get out of there. I'm not totally sure how it works, but still pretty cool.

A head nod up to someone you know is "how you doing " A head nod up to anyone you don't know is a challenge to fight. Usually accompanied with staring.

I used to work in a musical instrument retailer, and I used to do inventory on Fender guitars because we had a wholesale client. I manually took inventory for him every week (we were independent, not the big chains you are thinking of) and I eventually got to a point where I could read the item number and tell you the quality tier, country of manufacture, model, and color of the guitar without opening the box.

Who would dare interrupt his neighbours ninehundred and eleven call!

Et Cetera means "and so on." It is abbreviated "etc" NOT "ect;" ect is abbreviation for electro-convulsion therapy

On the London underground, if you hear a PA announcement requesting a "Inspector Sands", that's code for a fire on the premises.

The nod one shook me. I’ve just now read the description for something I’ve done for years without conscious effort to do it. I was never taught, it was just something that came through environment.

The hospital codes are different at EVERY HOSPITAL. It all depends on their individual codes.

I’m actually glad EMS uses A high five to signal Hi V... I call it the “high five” cause V is Roman numeral for five, so it’s hi V. The “house in Virginia” is also clever, but not quite as clever as the high five.

the “nod code” aint just a guy thing

When I was in IKEA they sounded Code 99 several times and we had security and some regular employees rush by, open a secret panel in the wall to other section, and disappear beyond. Apparently it means a kid has got lost / separated from the parents.

as if it was so normal to have 437737 cats

You can find a citrus tree by looking out for the scent of citrus?? Wow, I never knew.

“Hail Hydra”

10:25 I like how he mentioned knocking out a telephone wire for the US digging thing but didn't use the more important example of hitting a gas line and literally exploding the entire neighborhood and then some. Just funny because he seemed like thats why it was important to call that...like youre neighbor would just so happen to be needing to call 911 at that moment...as someone that use to work in this field you are 100 percent more likely to hit a gas line and murder everyone in a 5 mile radius.😂 i beleive he is the fool.

For the whole “6 o’clock” thing I use “AM” If it’s something good they want to see or “PM” to warn them of something bad.

I didn't know the hospital one but I sure learned quick when a code purple was called followed with a shooter alert I was just sitting there until someone grabbed me and ran outside I owe them my life

Male nod code (as far as I understand) Down nod: a respectful gesture used when someone else does something they approve of, similar to a bow Up nod: acknowledgment of another's actions/taunt (example being, "try me and see what happens") Left tilt: usually means "lets move somewhere else" typically used in a noisy area when they are unsatisfied by the location Right tilt: usually means "check behind me but don't make it obvious" Most often used at bars when a guy wants the person he's with to be his wing man but can also mean the same thing as a left tilt Down shake: a disapproving gesture when someone makes a bad choice or fails to do something Up shake: a disappointed gesture when someone does something they disapprove of (opposite of the down shake)

A code silver in hospitals is an elderly person with altered mental status that has wandered away... at least in my area

"In the weeds" isn't code, that's an old saying!

in any bus station in my city, if you say any sentence with Pink Bus on it, the person at the bus ticket booth will know u are a hostage.

When I worked in a department store calling over the intercom that you needed a roll of dimes to a department ment you needed loss prevention because someone may be shoplifting

Since the fear of killing sprees has grown in germany, they installed codes in buildings like schools and stuff. if the neccessary button is pushed (often near the fire alarm but more harmless, in my school it was a "care taker alarm" to summon care takers. there were no care takers at my school) and the code was only given out to the teachers. Some where dumb enough to write it down so to this day I know the code word was "Mrs Koma" which is backwards for Amok - Killing spree.

Any time the Government says, “Shelter in Place.”. Blast Iron Maiden’s Run to the Hills, and do exactly that.

“Nice shoelaces” “Thanks, I stole them from the president”

8:12 different languages and cultures have different tonal patterns. This is pretty asumptive to apply universally.

Over in the UK I’ve found that the north “ where I’m from “ uses the nod to politely say hello to/ thank strangers and acquaintances. It’s probably also used down south but I have little experience of it ✨

Protein spill is what we call it when someone pukes at the amusement park I work at

I made my own knock code (not released yet): 2 knocks: Your package/mail has arrived 3 knocks: A visitor 4 knocks: An emergency Also, my dad made a melody code, so when I hear the melody it means: Hi, it's your dad, open up because I have no keys.

Don't you ever just look at the comments and think "I wish I wrote that"

I was driving once late at night and a car coming from the opposite direction flashed it's lights EIGHT times at me. I spent the next 20 minutes thinking about what that could have been code for. Then I pulled into a gas station to fill up. When I got out of the car, there was one of those prosthetic hook hands on the outside door handle with some blood dripping off it. The more you know.

I know one code partly If you turn off the lights and flash a UV light on some licences then it shows a number Yep, that’s it

3:34 The “aggressive” nod is usually accompanied by a sort of mean face or a face that looks unfriendly. That’s how you know it’s aggressive. If the face is neutral or smiling then it’s a “what’s up” nod.

In response to the hospital codes some of those are out of date here are updated one Code red: Fire Code blue: cardiac/respiratory arrest Code white: pediatric medical emergency Code grey: behavioral situation Code pink + age + sex is missing person Code triage: external/internal disaster Code orange: hazardous contamination Code yellow: Bomb threat

My personal favorite: If you're in a Hospital, and you hear "Twinkle Twinkle Little Star" ovder the PA, a Baby was just born. This alone does so much to help combat stress, depression, and caretaker burnout in Healthcare workers. It reminds us it isn't all just pain and death and hopeless.

Some common semi truck speak (I'm not a driver so this might be wrong): Little cub: Local Police Bear Trap : Speed trap Big bear: State Trooper Bear with a victim: Police with someone pulled over Evel Knievel: Motorcycle police Meat Wagon: Ambulance Bear rolling discos: Police with lights & siren on Buster Brown: UPS Truck Angry Kangaroo: A truck/car with its lights out Bear Bait: A speeding driver

11:22 - Mr Sands, or as it is more commonly known, Inspector Sands, isn't used *because* it's an uncommon last name. Legend has it that it originates from using buckets of sand to put out fires. It's typically used in train stations or airports, where there's a lot of footfall and a lot of large dangerous machinery. It primarily means fire, but can also be for a medical emergency, bomb threat, "one under" (suicide), or other cause for evacuation. Fun fact: large stations with a Inspector Sands announcement usually have it set up as a prerecorded message. When the fire safety system detects smoke/heat or a fault in an area, it announces "Would Inspector Sands please go to [location of fault/fire - such as 'Platform 2']". If there's multiple faults/sensors activated (or for safety reasons - some curious people may head to the location mentioned and end up in danger), it may ask the fictitious Inspector to go to the control room instead. Once a length of time elapses without the alarm being acknowledged, most systems automatically set off the fire alarm proper to shoo people out of the area, as it should be assumed that a serious issue has occurred and the building is deemed unsafe. Of course, staff can also elect to trigger the alarm themselves, or cancel it if nothing is wrong. You can find a few videos of these systems from trainspotters on KZfaq (:

Smacking the floor and yelling “OASIS!!”

The next time you see an ad, be it a poster, a flyer, etc. Look closely at it. For example, an ad for a shampoo. It claims to "reduce" dandruff, but at the end of that statement at the top right, next to it, is an opoosite sign in extremely fine print, in this case, a minus or negative sign will be found. Give it a try.