Perhaps the trite comical definition of the act of putting one's entire cranius inside a Woman's Vagina being called a "Salmon Helmet" can effectively make up for the horrid practice some cowboy types used to do which involved cutting off tribal Vaginas and stretching them over saddlehorns to cure into wearable "Salmon Helmets" in conquistadore style for instance.
Macy's was having a clearance on "Salmon Helmets" and the hornyAsian exchange student Woman that worked at the local museum made certain to aquire them all...
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.