FAP
Acronym for "fat ass puss." Commonly used in the bodybuilding world referring to a fat guy that thinks he is muscular and developed.
That guy over there is a FAP.
By Ferguson/Templeton/Duff
What's on your mug?
fap
Dumbass internet lingo form of "masturbate".
Internet nerd 1: I ARE TEH FAPPIN TO SOME UNDERAEGE TITTIES!!! Internet nerd 2: LULZ ME 2!!! FAP FAP FAP <3 HANNAH MONTANA!!! Person 3: Go outside and get some sunshine, I promise it might make you two less annoying.
By JDdoesWORK
FAP
FAP is the sound your hand makes on your dick when you jack off rapidly.
I need to cum! I'm gonna FAP!
By USAF Cadet
Fap
To "fiercely slap" someone who has wronged you or is just being annoying
This better not be a prank bro, I swear I will fap you in the face so hard!
By Keith_not_Kieth
Fap
Male masterbation to porn
*fap *fap*fap Wife walks in " WTF!!!!!!!"
By Creamymemes