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1.
Someone/ Something likes to eat meat or eats meat as it's staple diet.
He is eating meat again. He is such a meater.
by nakstar January 14, 2013
 
2.
When a male puts his penis into a female.
I don't want to date that bitch but I'd meater.
by Sand Crab JK May 29, 2011
 
3.
Someone who goes fishing only to catch food and not for the sport.

Used derisively by sport fishermen.
"That guy hasn't put anything back all day. What a meater."
by Andrew July 02, 2004