Stands for Random Fucking Grenade. Like in COD when someone randomly throws a grenade, and it always happens to hit you.
by BrokenBlackWolf July 6, 2010
Get the RFGmug. by JEHCMH May 4, 2008
Get the RFGmug. "Let's play some RFG and sledge some buildings!"
by Tegrat July 9, 2009
Get the RFGmug. by that1redguy June 28, 2008
Get the RFGmug. by Crimson_Koala April 5, 2009
Get the RFGmug. 
