A term used to describe another person as in the way
people call each other
dogs. It came from the Derby Lane dog track when a
bum bet on a dog and was so frustrated that he called the dog that lost a rat! We overheard this and every time we bet a dog that lost we called him a rat. Then we started calling each other rats for betting on rat dogs. The term rat can be used as a compliment and as an insult. It all depends on how you use the term.
I can't believe this rat lost all his
money at the casino. He's such a rat!
Man, I love this rat, he always come through with buying everyone drinks, you'
re the
real MVP!