-Is used to describe one feels about their own self, or the way they smell.
-Can be used to express how depressed, angry, pissed off at the world, hangry, saddened, or slutty you are in that moment.
Person 1; "Ugh.. I'm trash today"
Person 2; "Stop being so hangry and get a life you slut."
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.