One who eats essentially any food available. The food does not have to be vegetable or meat. Whatever is conveniently located within arms reach, that is edible, is fair game for a versatarian.
John: I had the chance of going out and getting some pizza, but I ate a week old chicken and rice container instead because it was right in front of me.
Nick: Damn dude, you're a fuckin' versatarian. You'll eat anything as long as it's conveniently located in front of your mouth.
John: CASH THAT STATEMENT.