this may be one of the most catchy songs ive ever heard

Yeah, the yellow card is a reference to soccer. Overall it is a song directed at haters that try to pry too much in her personal life. So she is giving them a yellow card for crossing the line. The beep is because the title in Korean refers to a pager, so the beep comes from beep at the end of a pager message. This is up there with my favorites of IU. Upbeat and whimsical in style while at the same time dealing with a serious topic in the lyrics.

This is the song Jieun wrote the lyrics that plays with the beat of the song with words and makes it fun and catchy.

As has already been point out below, yes this song is about not just haters but over eager fans who don't know the limits of good manners and personal space. The quotes used in the song are actual comments people have made about her. Before the release of the song their were people who worried that the song may offend people. They wondered how can you scold haters and overeager fans to behave themselves without pissing people off. Well the answer is this isn't just anybody, this is IU and she was able to pull it off and even call them stupid.

More iu reactions ❤

Yay! BBIBBI! You guys should watch the video "IU-BBIBBI Explained by a Korean" kzfaq.info/get/bejne/fcqVZdFludXehI0.html. There's a deeper meaning behind those lyrics. She's being savage in the most adorable way :)

Please react to IU's new mini album, Pieces.

IU-Every and of the day reaction plz If you search for the English subtitle version behind the title, there is a video that you can enjoy with the subtitles.

bbibbi is the beep from the pager. When someone calls, there will be a loud bbibbi alarm.

i love iu

thank youuuu

Official videos related to this song. 아이유(IU) : '삐삐(BBIBBI)' DANCE PRACTICE: kzfaq.info/get/bejne/ntSXoM9k3pi2oWw.html [IU] 'BBIBBI’ ('dlwlrma' Concert Mix Ver.) 스페셜 영상: kzfaq.info/get/bejne/oM9zmqWZ0bC0dJc.html

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เสียงของไอยูiuเสียงของเธอดข้าแต่ละเพลงครับผมฮาๆ

Top 10 most brutal disstrack next to "Vaseline" by Ice Cube and "Hit Em Up" by Tupac lol jk Yes yellow card means warning an this song is a warning to all her haters and some nosy paparazzi hahah

Our iu she strong woman and not scared everything this song so good can making haters so quiet and don't a cross your line not only for hater for paparazi also or social media don't talking nonsense if you do know everything about her live or other idol actor actress live

please react to jessi cold blooded