It starts off with the odd merk every now and then. Then it starts becoming more frequent and before you know it you're merkinbare edz, bare manz; no one escapes a merkin. True merkaholic.
A Merkrat is a person or thing that has done some pretty thug or crazystuff. A Merkrat can also be someone who knows how to mac it with the ladies. It can be used as an adjective or a noun. Most Merkrats do what they want and usually get away with it.
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.