The act of putting a wet tea spoon in either the instant coffee or in the sugar (or both) - leading to congealed clumps and bits of coffee in the sugar.
"I caught Gary wet spooning again this morning, someone really needs to have a word with him, it's not on."
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.