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I guess it's an online band created by BTS, Big Hit Entertainment, and LINE FRIENDS. Each BTS member has one character that represents themselves. BT21 was also made as a puzzle game called Puzzle Star BT21.
BT21 was created by BTS.
BT21 by taehyung's romantic wife November 2, 2018
Related Words
BT21 are a Line production made by BTS. The line BT21 consists of Jin's character: RJ. Suga's character: Shooky. J-Hope's character: Mang. RM's character: Koya. Jimin's character: Chimmy. V's character: Tata. Jungkook's character: Cooky. And a bonus character, Van. All characters are designed based on each BTS members' drawings which you can see them creating in a YouTube series about it where you can see the process of drawing them. BT21 has its own Twitter and Instagram account. BT21 is used in a lot of designs for Line, like plushies, dolls, headbands and more.
BTS fan: I got a new BT21 plushie!
Someone: What is BT21?
BTS fan: BT21 is adorable characters for Line designed by BTS!
BT21 by ARMY0505 September 28, 2019
More from Urban Dictionary
Being ignored by someone when making a statement or asking a question. Also known as blanked and turfed.
Person 1: Did u watch ** last nite?
Person 2:......
Person 3: O no u got aired!
aired by Pietro February 9, 2005
Word of the Day on October 10, 2026

piddlefart

Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
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