GFYN 

Grateful For Your Notice.

When you want to thank for bringing your attention to subject that's been pointed out.

- You have a typo. Third line, second word.
- GFYN, will fix it.

GFYN by Тшсу September 10, 2013

GFYN 

go fuck yaself niggaaaaa

ya boss axe you to stay late on the mother fuckin weekend.
you say, "yo boss man, GFYN."

GFYN by Timmy aka Monster March 25, 2007

GFYNM 

Go Fuck Your Nigger Mother

Alex: wtf man just let me borrow $3.50
Me: GFYNM

GFYNM by ill_matic April 20, 2010

GFYNGFY 

Good for you, now, go fuck yourself

A: I bowled a 200
B: GFYNGFY

GFYNGFY by Ableton August 26, 2012