Exclusively used in the negative, meaning something that is not right, lawful or good. Relating to the Jewish word used for the correct preparation of foods.
Bob: Woah.. There's a guy in the bushes over there.
John: He's pointing that camera at that school over the road.
Bob: Dude, that is not kosha.
John: He's pointing that camera at that school over the road.
Bob: Dude, that is not kosha.
by Akabocha April 08, 2011
The "kosha boy" is a new dance as seen on Youtube. They took the ideas from the Soulja Boy dance and improved on them. It's a popular dance in the Jewish community, I hear.
Person #1 :Did you see that Hebrew ninja crank dat "kosha boy"?
Person #2 Yeah, dat ninja has moves like a cat.
Person #2 Yeah, dat ninja has moves like a cat.
by hurley g March 16, 2011