Go fuck yourself; often used when someone has pissed you off.
That slut pissed me off, so I told her to GFY.
Short for "Go fuck yourself"
Why don't you Gfy
A direct command telling someone to immediately go vigorously masturbate. GFY is usually intended to communicate that you can't do anything for someone (usually a friend) who is acting like a sniveling idiot and that they should take responsibility for themselves.
Whiner Dude: “But, but they said mean things about me and hurt my feelings.”
Manly Dude: “GFY”
GFY is an acronym meaning, Go Fuck Yourself.
Brad: hey Vince remember that girl you were talking to lastnite well sorry dude i got her number.
Vince: you know what Brad, GFY thats all i got to say to you.
Gutted For You
Awww GFY - can't believe you actually just stood in dog crap!