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The act of being Ghetto As Fuck. GAF=Ghetto As Fuck.
Look at her grocery shopping in a robe with her hair curlers still in! That bitch is gaffin!
by kirsteno January 05, 2010
Coughin a lung up after takin a huge fuckin hit.
Jake, you straightin gaffin on that blunt.

That nigga straight gaffin. haha
by Chronic T Bluunt August 26, 2009

cool, tight, sweet
That shits straight gaffin, dog.
by michael kriebel March 29, 2008