Abbreviation for give a fuck..... unless you are talking to someone named Rafael. In this case gaf means gay as fuck as Rafael is quite gay.
Did Rafael just get fucked by a boy. Thats so gaf.
Gay As Fuck. Like gayer than Elton John sucking off Freddie Mercury. while wearing blue-sparkled hot-pants, in a gigantic swimming pool full of cum.
Offence word for a dirty penis
Kelly: omg Gina, David has a gaf
Gina: no way you’re kidding! That’s so gross
GAF means to give a fuck less about whatever it is and used for something you don't really care about. originating from Sammy PSU
Mikey- Should we let these girls into the party, they’re with a few dudes though?
Paulie- GAF about the dudes, let the girls in.
Mikey- Your right, it really is a GAF mentality.
Paulie- It’s the truth. Tell these herbs to peace.