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...
Senior 2: BFD
Senior 3: It's a RBFD...
by IDlOT September 30, 2009
Get the RBFDmug. by PsychoKiller27 May 4, 2011
Get the RBFdmug.