Like a vegitarian, but someone who only eats meat and no veggies. A vegitarian thinks eating meat is cruel, a meatitarian thinks eating vegitation (plants/fauna) is cruel. 100% carnivorous.
Teacher: Who here wants or needs the special diet meals at camp?
Student One: I do ma'am.
Student Two (whispers): Dude! Are you a vegitarian?!
Student One (whispers): No! I'm a meatitarian!