Side chick 

The female who is Romantically involved with a man that she know has a girlfriend or wife. AkA BECKY... With the good hair as of April 2016

Side chick: Girl you know Ray right, I been with him for 2 years.

Friend: Girl Ray has been married to Sherelle for 5 years. They have been in a relationship for 10.

Side chick: Ye but he dont really love her tho.

Friend : So you Becky now! Girl you know thats his main chick shoot.

Side chick by Yonce27 May 29, 2016

Side chick 

A Bitch that is dating a boy that is cheating on the Bitch and the Bitch knows y'all

Bitch I get Jb on Sunday!!

-stranger- she is a side chick

Side chick by Side chick hater March 10, 2018

Side chick 

The kind of girls without a boyfriend who are often "the third wheel" in a relationship setting.
Usually these girls want to be with the guy whom they're associated with, but there was no agreement for them to go that step further.

The man whom the side chick is associated with is pretty indecisive about whom they want romantic relations with, but since they got hung up on several chicks, he might as well have his side chicks.

Julia isn't Jason's girlfriend. And Meghan isn't his girlfriend either. Apparently, they're his side chicks. Jason won't decide!

Side chick by whats_yo_name_pussycat May 10, 2018

Side Chick 

The girl a guy cheats on his girlfriend with because she's better in bed. Not always a bad thing to the girl and guy, just society.

I'm flattered to be the side chick because it means I'm better in bed than his lousy girlfriend is.

Side Chick by thatonechickyuhdig January 2, 2015

Side Chick 

that bitch you keep on the side while you’re still dating someone

Myla sucked my dick last night and my girlfriend will never know. She’s the best side chick ever!

Side Chick by mylathesidechick August 3, 2019

Side Chick 

the chick on the side of ur girl because she betta in bed but she is not the wifey or the girlfriend just a side plate dont ever fall for your side chick the only thing she gets from u is dick and she cant contact u in anyway

Kim: what is he doin with Felicia i thought deleah was his girl
Matt: no he is wit deleah that is just his side chick Bitch u is stupid

Side Chick by NYKUH March 4, 2015

Side Chick 

The girl you gas up making them think they will eventually be the one you marry when you’re not in the house with the girl you live with. She’s the one you actually have fun with, talk to while you’re at work or hanging out with your boys, but can never talk too once you enter the house.

I’m about to go to my cousin’s house so I can FaceTime my side chick.

Side Chick by DarkAngel00 March 26, 2020