GTHUFB 

Computer slang used to shortcut "Go to hell you fucking bitch"

Girl: wtf iz itt wif guyz 2day?! tey dun anzer my PMz!!!!1111111111
Guy: GTHUFB!

GTHUFB by Good-Guy January 7, 2005

GTHYFB 

Go To Hell You Fucking Bastard.
An acronym that people who don't want to get in trouble use to tell other people off.

Hey man! That little girl wrote GTHYFB on that bus window!

GTHYFB by CoopDogg January 22, 2008