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1.
A vegan who won't eat anything that casts a shadow.

As used on the Simpsons episode "Lisa the Tree Hugger", animal/enviornmental rights activist, Jesse tells Lisa that he is a level 5 vegan, who wont eat anything that casts a shadow. Such thing doesn't exist, mind you.
Lisa: Oh, the earth is the best! That's why I'm a vegetarian.
Jesse: Heh. Well, that's a start.
Lisa: Uh, well, I was thinking of going vegan.
Jesse: I'm a level 5 vegan -- I won't eat anything that casts a shadow.
by rubber_duckie May 29, 2006
 
2.
A vegan who won't eat anything that casts a shadow.
From the Simpsons.
by LudwigVan December 19, 2003