Top Definition
A woman that is one level above a jump off but always a step below the wife, wifey, girlfriend. A side bitch must know her part. She does not get holiday's, birthday's (other than her own). While he may meet your family. You will never meet his.
A side bitch is a woman who will have sex on Feb. 1-13 and spend Valentines day alone.
by class09 January 30, 2009
when a girl is not exactly his girl. Someone who he treats as he should his girl but never commits to her. She usually feels like shit.
Cole: why don't you go with Tanner?
Me: Im just his side bitch....
by AlleyKatt December 29, 2014
Usually a girl best friend that's pretty close that you wanna fuck when you have a girlfriend. Most commonly an ex-best friend/friend of your girlfriend.
Tom: Damn Tracy is pretty hot i wanna make her my side bitch
Lance: Dude what about your girlfriend Hannah?
Tom: She doesn't need to know about my side bitch
by dic...tionary October 27, 2014
A female who is having a romantic or sexual relationship with another female's significant other or spouse. She may truly be in love with the "taken" individual. The "taken" person may or may not necessarily reciprocate the feelings, but the fact remains nonetheless that s/he has a "main girl" and is cheating on her with this female.
As it turned out, Ashley was James's side bitch, and we were just as shocked as anyone else.
by Fredricka-Louise August 23, 2015
like a sidekick to a complete bitch.
She's like Leah's total SIDEBITCH.
by XxLOL_iLY123xX February 01, 2009

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