Top Definition
A REALLY big fucking deal. For when a "big fucking deal" doesn't quite capture the magnitude of the pressing matter at hand.
Senior 1: Dude secondary school reports for college apps are due tomorrow.

Senior 2: BFD
Senior 3: It's a RBFD...
by IDlOT September 30, 2009
It's like being "Rick Rolled", except the video is "Friday" by Rebecca Black.
DAMMT!!! >< I got RBFd AGAIN!!!!!! >:(
by PsychoKiller27 April 15, 2011
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