A term that is commonly used by college professors to refer to students that get (by law) 50% more time on tests because of a "learning disability". The disability is typically related to test anxiety.
The term derives its meaning from the fact that disabled students in the public school system often ride to (and from) school in a bus that is about half the length of a typical school bus.
Professor 1: How many short bussers do you have in your class this semester?
Professor 2: I'm not sure, but can you tell me how the fuck those retards get into college at all?
Professor 1: Yeah, fuck the ADA (Americans with Disabilities Act)!
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.