Sexfoot

The onset of sudden pain or cramps in ones extremeties, usually the arche/sole of the foot, as a result of lack of bloodflow to the area during coitus.

john: AAAAAARRRRGGGGHHHHHH!!!! christ get off me!!!
Jenny: What? Why?
John: cuz i got sexfoot and it pains me like a muthabitch!
Jenny: oh...pity.

by Billy Baggins March 31, 2007