A word deriving from the phrase "big ole tittes" used between men, usually in the presence of woman, to describe exceptionally large breasts without the woman knowing what the men are talking about
"Man, that girl had some tigglebitties!"
"I know dude!"
"Hey guys! What are you talking about?"
"O nothing. We definitely weren't talking about your tits, thats for sure."
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.