The organisation of militant vegans, pushing their ideology on everyone through a sustained campaign of meateater bashing and telling the world their lifestyle choice.
A vegan who is almost Nazi-like in his or her belief in veganisn, such that they feel the need to feel enraged by anyone who eats any form of meat, and go on a vegetable-fueled rage about how "meat is murder" and that meat eaters are "disgraceful, uncivilised, barbaric and primal" beings that should have gone extinct around the time of the Neanderthals. They also don't accept that going vegan isn't the best thing that could happen to anyone, and refuses to listen to anyone who says otherwise.
"Dude did you see the shitstorm in the comments on Deadmau5's Instagram photo of a suckling pig?"
"Yeah, those veganazis are back at it again with their fascist views of vegetablesuperiority. "
A self-righteous vegan who pushes his or her views onto others and will use violence, lies, misinformation and other unethical methods to promote their views.
A vegan who believes that everyone that isn't vegan are not politically correct. Veganazi's are usually closely related to the famed feminazi's. If you're not vegan you will be hated on. Veganazi's are "always" right due to their manipulative ways and selective hearing.
Frank: Imma go get me some chicken nuggets Vegan: Chickens died for your pleasure. You should become vegan because you are killing innocent animals
Frank: Kys veganazi.