Top definition
A phrase, interchangeable with 'that's pork', normally used in reaction to unpleasant conversation.
#1: Man, I just took the most epic shite of my life, it proper stunk up the place.

#2: Jesus dude, that's not kosher.
by Tiggerback June 15, 2010
Get the mug
Get a That's Not Kosher mug for your daughter Larisa.