A fork of Rural Dictionary
It is used in a popular but messed up vocaloid, song.
Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start. Isn't it just asking too much, to do the impossible?
Bl means Boys Love, it is often is used as another word for yaoi, which involves manga or anime. The book would most likely have the abriviation BL on it. Otherwise Warning this contains Gay things.
"YAY! SO I'M NOT LIKE ONE OF THOSE BL CHARACTERS!"