Top Definition
People (mainly girls) who eat and eat and never grow any fatter.

Mainly used as a term of endearment for a friend who steals all your food, or finishes it for you.
Person:"I'm so full...I don't even know why I got second helpings"

Eatbeast friend (with own food):"I'll eat it!"
by spinme April 28, 2007
1 more definition
4 Words related to Eatbeast
A gigantic woman, composed of approximately 90.0% lard, with an esophagus that has greater gravity than the sun.
This eatbeast is going to fuck up this entire buffet. There will be nothing left in about 5 minutes. I hope she doesn't eat my little brother.
by G|23G October 13, 2003

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