When ordering something to eat in a seafood restaurant, the landatarian will always choose the chicken, or something else that lived on land, because they refuse to eat seafood.
A person who refrains from eating animals from the sea, or animals who fly such as birds. This can also be seen as a person who only eat animals that live solely on the land.
An ignorant fatty who considers herself to be a vegetarian even though she consumes vast quantities of beef tallow, chicken stock, gelatin and other nasty animal products.