A small dog, usually under 30lbs, that in some way shape or form resembles a combination of a cat and a RAT
A dog is big, mean, and can bite, but your little toy poodle is a crat!
by Kid who doesn't want to study February 16, 2011

For anyone who appreciates the highly informative and descriptive word called "Crat"

What crat means:
The correct definition of crat is "A person who is sneaky and dumb".

idiot, jackass, snitch asshole, backstabber
Crat is usually used in frustration against another person, i.e. "You are a real crat!!!"
But it can also be used to describe another person, i.e. "That guy is a real crat"
by His Imperial Cratness February 05, 2009

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