This is just 2012 written in Roman Numerals making it look so much more badass. This makes you also seem so much more intellectual than you actually are. Each "M" stands for 1000, the "X" stands for 10, and each "I" stands for 1 so 1000+1000+10+1+1=2012.
Hey man can you read this? I can. MMXII just means 2012, damn am I the only person that's smart enough to read this?
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.