Top definition
When you're fapping, you reach your climax, but pull your foreskin over your dick so none of the cum comes out. Note: does not feel as good as normal fapping.
Bro, I was in art class today and I needed to rub my nub real bad so I fap capped.
by WonderMacaroni December 15, 2014
Get the mug
Get a Fap cap mug for your fish Callisto.