It was a common name years ago, our ancestor (Καίτη) came up with. A texan woman with a hard face of grief. The unique name squiggly diggly was meant for saying you idiot or calling someone stupid when your mad
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.