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1.
Someone who insists on only eating meat and does not give a crap about political correctness, by all those flatulent vegetarians.

Will only eat vegetables providing there is a side of cow/fish/chicken associated with it, or they will be deeply offended about the lack consideration shown by vegetarians who insist on omitting meat from a regular meal
Will you go to a vegetarian restaurant ? No I am a Carnivarian and must eat meat with my meals.
by giuliocc June 10, 2009
 
2.
Opposite/Nemesis of the Vegetarian. A meat and potatoes sort with lust for multiple meats stacked and launched into their gullets at rage force.
Oh, no lettuce, tomato or onion on my bacon swiss burger dip please.... I'm a Carnivarian.
by Donkey Hodey February 05, 2011