One who loves the act of using a paper towel tube or toilet paperroll and lubricant to insert a small rodent in their ass.
Simon, Matt and Dennis the felchmongers practice the act of felching daily at 3:09 PM. They are ridiculously aroused by this act of rodents being inside.
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.