Having sex with a man with a small penis, usually as the only alternative to a nightalone.
Joan was happy to leave the club with John, but when they got to his place and disrobed, she decided that a night of stump grinding was better than going home.
It is said of the situation where a person has the bad luck to make contact with his testicles against an undefined surface or object, intentioned or not.
Given the nature of the word, it is more appropriate to design cases where the interaction is made with a moving object, for example, a ball.
Although it is extremely painful for the victim, it tends to be considerably funny to people who witness it.
Today in the baseball game the pitcher took a nutshot; the baseball hit him in the nuts.
Man, I just watched the funniest nutshot video ever.