What is Koff?
1.
a jackoff. Can be used more benignly as a generic term for a person, like 
"What are all these koffs doing here?"
2.
Very good weed that makes one cough...a lot!
That nigga bobby has the best weed in the world, I swear it's that koff!
See 
Random Words:
1. 
Your are gay beyond reason,Like u'd caress another guys balls or something;also used as queerbag
-Yo Mikey is such a queer bag bal..