When a male or female sleeps/have sex with other people or multiple folks behind their spouse's back
"Yo while you' re at work, your girl Lisa be running around on you like you're brand new. I hear she also sucks and swallows like a pro too and her pussies tight!
Running around with Angie is a great way to burn those carbs. Running around with Angie will benefit your life in soooo MANY ways. You’ll love running around with Angie!
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.