The phrase used when someone does something that most
people don't agree with; socially unacceptable; politically incorrect.
This phrase cannot be used in reference to dill pickles, because I'
m pretty sure those are always kosher.
Jack: John, are you stealing those little
kids' lunch
money again? You're like 40 man you need to stop that.
John: (Looks down at his
feet with shame)
Jack: Not kosher man, not kosher at all