Used mostly in online games, reffering a person who has performed or said a stupid or wrongthing. Also used to taunt noobs and newbs.
the word "Baka" in Japaneese simpley means "Stupid".
When you are really really good with something, like the Japs. The word is very often used for people who spend most of their spare time on one specific task and thus becoming very good at that task
Boy1: What did you do this weekend?
Boy2: I played Guitarhero
Boy3: Is that all?
Boy1: You must be real Japanees
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.