When you’re gang banging a chick and a guy can’t keep his erection, usually from stage freight.
Also can be a sissy little mommy’s boy who’s beat off to too much porn and can’t get the job done with a chick.
Any situation where a guy can’t produce wood.
Me and the guys were pulling a train on Kellie's asshole and cunt but Craig came up with a case of wimpotence when it was his turn to hammer it in. He’s such a fag.
Jay finally got his chance to bang Ann but he turned up wimpotent! What a tosser, back to beating off in mom’s basement!