What is Gamerfag?
Someone who shows off their gamertag: Someone who thinks that their gamertag actually matters.
Player 1: "Hey, check out my awesome gamertag, xXDrAgOnMaStErXx. Isn't it sweet?"
Player 2: "No. Get a life, GamerFag."
See gamertag, xbox 360, fag, gay, nerd, vetonoob