A travass can be used as noun or as adjective that can be used described 1. something really gross, nasty or foul. 2. Or something really rednecklike activity. 3. Could just describe an unusual activity and definition could have multiple meanings totally up to how you would like to decipher the topic.
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.