fzg Share definition Flag FZG - Internet typo of the word fag. Intentionally used as an insult, but has become more of a general phrase, sometimes used to say hello and shutup. <dawm> hi <yokomo> FZG! <dawm> dude shutup fzg by fpn February 5, 2005 0 0 Get merch Get the fzg mug. Buy Now — $32.95 See more merch