A fork of Rural Dictionary
Slang commonly used in text messages or instant messages meaning big fucking deal, as used by Micheal Scott in an episode of The Office.
Jim: I can't make a move on her she's engaged. Micheal: BFD, engaged ain't married.
Big fat dick. Originating from the Devin Millar song of the same name.
I got a BFD and I'm ready baby.