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1.
gfy
Could mean either "Go fuck yourself" or "Good for you". Either one works quite effectivly.
person1: "Yeah, I won the prize!11!!!1"
person2:"GFY"
person1:"wha?"
by Blarg June 22, 2004
 
2.
gfy's - go fuck yourselves

plural form of gfys.

go fuck yourselves
hey Mr. cunt Southwood (some old wrinkly homo from spaghetti westerns)

you, your friends, your political party, and all your multiple personalities can go find yourselves squarely atop your own wrinkly impotent acorns. gfy's
by WordRepoMan January 21, 2013
 
3.
gfy
Good For You (sarcastically)

AND

Go Fuck Yourself
guy 1: "I pwned ur bitchass u n00b"
guy 2: "GFY, now GFY!"
by BlessROK April 07, 2005
 
4.
GFY
Go Fuck Yourself!
When I asked him for his daughter, he told me to GFY!
by Kaiser November 08, 2002
 
5.
Short- Go Fuck YourSelf.
GFYS you Fucktard

Why don't you all shut up and GFYS
by Chris A. April 08, 2005
 
6.
mixed meaning, in the case of a friend, good for you. If someone you don't like, Go F*** Yourself
Friend: Congrats on the promotion, G.F.Y.
Jerk: Leave me alone, G.F.Y.
by Flicky23 November 27, 2005
 
7.
Its an abbreviation for Go Fuck Your Self.
Sean: Dude its bad you got dumped on Valentines.
Mike: GFYS.
by AayCueTru April 11, 2009