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someone who is a vegan and goes beyond the acceptable ways of professing this fact (wearing t-shirts and patches, handing out leaflets, writing letters, giving presentations, having websites, and so on) and harasses people about their meat/dairy eating ways in a non-joking manner. not to be confused with your garden variety vegan.
"dude, that kid started screaming at me for eating a cookie with eggs in it... what a vegan nazi!"
by wannabe April 29, 2006
The fuckers who try to tell us that "Meat is Murder" while bombing butcher shops and restaurants.
by Carnivore July 14, 2003
A member of PETA.
Vegan Nazis are usually jackasses.
by Anonymous June 28, 2003