'My name was gonna be Joshua, but my dad didn't like that. However when my mum almost died giving birth to me, he was so hopped up on the oh no's that he didn't care what my name was gonna be anymore' - J.A.W.
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.