A seat of any kind that is mildly damaged (whether it be a crack or a broken leg, etc.) but is not damaged to the point where it is not able to be used.
I accidentally put a crack in a chair in the children's section of the library, but it isnt splintered. It's sittable.
1. The ability to stay cheery no matter how much shit life throws at you.
Denise: Wow, Jackie seems so happy. She's all smiles even though David just broke up with her.
Cindy: Yeah, that's Jackie though, she is un-shittable-on.
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.