The smallest division of a fart; a fart molecule. Made up principally of Carbon, Hydrogen, and Sulphur atoms in gaseous form. A single folecule is detectible when particularly potent. See entries at farticle and farticles.
Innocent Bystander: "Dude, did you let one fly?"
Guilty Party: "Yes, but it was a tiny one."
Innocent Bystander: "Disgusting! I got a whiff of your folecules way over here!"
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.