Top Definition
A loser slut constantly striving for attention when she is unwanted.
After playing pass-around with her, Johnny and Mick decided that Becky was indeed just another rat bitch.
by Ebeling June 22, 2003

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Someone who has worn out their welcome with constant nagging and/or constant requests.
If that rat bitch asks me for one more goddamn thing, I think I will strangle him.
by almost June 22, 2004

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GIRLS WHO SLEEP WITH THEIR FRIENDS BOYFRIENDS AND LIE ABOUT IT !

EMPLOYEES WHO CALL CUSTOMERS FOUL NAMES.
rat bitch,skank
by anonlml August 17, 2011

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A person that owns rats that should have got a rabortion
That ratbitch tried to sell me baby rats in the club
by RatPimp February 19, 2017

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