Someone who is willing to be a bufffer between two people busting each other's balls and or driving eachother insane. The BMBB is typically a child(over 18) or grandchild(over 18) willing to step in and “say separate corners people!”
“Don we need to have Rachel come be the Bust My Balls Buffer! This is just getting to crazy! “
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi