Fuck-proof

A girl who's so fat that her thighs block access to her vag

Even if I was drunk enough to bother fucking her, I'd fail. Look at her, she's fuck-proof!

by CrazyDiamond_Thomas December 07, 2016

proof fuck

1. Most often used to mean sexual exploit with an ex to PROVE (once and for all mind you) that you either still have it...or have gotten better at it.

2. Sex with anyone just to prove you "can".

He looks pretty good these days...I might have to proof fuck his ass tonight!

I bet I can fuck that...I'll prove it.

by Miss President June 01, 2007