Definitions by DirteDeeds

Mexican Slap Off 

When someone at the urinal next to you shakes off so hard that you hear their penis making meat flapping sounds. Typically occurs amongst the Hispanic population whom seem to have less conservative urinal ethics.

Dude are you jerking off next to me or what? No, just giving it a good ole Mexican slap off.

Mexican Slap Off by DirteDeeds July 7, 2015