1 definition by Judge105

pre nut

When you think you're going to shoot a massive cum blast during masturbation or sex, but end up having a very weak and unsatisfying orgasm. This event typically ends with the pre nutter's penis emitting a weak semen stream as they lose their erection.

Leonardo: Hey man, yesterday I was really getting into beating my meat, but I pre nutted and ruined it.

Tom: That sucks bro.

by Judge105 May 1, 2016