When a group of male friends block out the advances of random whores at a bar or club. The act shows no interest in said whores, thus generating further interst from whores and a sense of entitlement and insecurity. The end result is male companions using whores for sex with false promises of future contact via phone/email.
Jon and Bob immediately threw up a cunt wall at The Plough In The Stars knowing full well they'd get what they wanted by the end of the night.
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.