A cumlicker is an individual either male or female who performs long or short sessions of oral or lots of hot sexy bang bang fuck y fucky with their partner. When the male ejaculates or explodes like a rocket the woman or man if the male is gay will lick it and slurp it like a lollipop. On a females side the male or female with lick all the juicy pussy goodness up like the apple filling out of a piece of poonani pie.
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.