The absence of a defined wrist on a person - whereby the forearm of the arm merges directly into the hand. The forearm appears to replace the wrist - hence the term "fwrists".
Very similar to cankles, except on the arms instead of the legs.
Damn that chick's got some huge forearms - LOOK! She's got fwrists!
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.