Gafu

Go an fuck yourself

-omg your t-shirt is trash
- Gafu

Gafu

Go and fuck yourself

-Hi ugly!
-Gafu

GAFU

Acronym (used as early as 1988) for...

God
Always
Follows
Us

My son left town today for his first year of college. I asked him to remember to pray as he was driving off, and I shouted GAFU!