A variation of the wet Willy. When one has diarrhea and puts one's finger into it, then immediately inserts said finger into someone else's ear. After performing the Wet Wonka, one should comment that the other person "cant hear shit"
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.