Mistake Share definition Flag When Jimin's jacket keeps falling off on stage and you can fucking see his shoulders and his undershirt which he calls a "mistake" but he looks very sexy with his mistake. Me: WHY THE FUCK DID JIMIN'S JAKCET FALL OFF AGAIN??!! Jimin: It was a mistake uwu Mistake by Yandere Sinon July 22, 2018 Get the Mistake mug.