What does gf mean in online gaming?

Don't Believe these losers saying it means Good Fight. They are trying to trick you. It means "G*y F*g" . When people say this you should call them GF right back or other random insults like ST (Stupid Tard) HN (Homo Noob) or KL (King Loser). Most of those last ones didn't catch on as well at GF did, so if you say one and someone says "What does that mean?" You can then yell "NOOOOOOOOOOB!!!!" At them for not knowing.