Top definition
gktfo means got knocked the fuk out, which would be past tense for ktfo. gktfo is more funnier to say, if i do say so myself.
A. Hey guys, I failed my pe test.
B. gktfo, biatch.

A. Damn he killed me.
B. gktfo
by heroin August 20, 2006
Get the mug
Get a gktfo mug for your bunkmate José.
buy the domain for your diy blog