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Someone or something that will eat anything, no matter how disgusting or odd it is.

Usually not to be taken seriously.
Friend: Man, what is your dog doing under the table?

Me: Eating something. Don't know what it is though.

Friend: Isn't that an issue?

Me: Nope, he's a hognivore. He'll eat anything.
by The Purple Menace May 13, 2013
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