gamecube fanboy Share definition Flag a gamecube fanboy is a fanboy who prefers the nintendo gamecube to all other systems to an insane degree. I R teh Uber l33t gamecube fanboy and the Xbox SUXXORZ! gamecube fanboy by Liam is awsome September 9, 2006 0 0 Get merch Get the gamecube fanboy mug. Buy Now — $32.95 See more merch
