Top Definition
the other woman; also known as the mistress; a female that is neither a male's wife or girlfriend who has relations with the male while he is in another relationship
Kimmy: Look at Tina and Josh...are they going out?
Sally: No Kimmy! Josh is dating Laura. Tina is just his sidechick.
by iamwifey January 17, 2007
10 more definitions
A position allocated to a girl which is neither a wifey or a girlfriend but a side dish like nandos rice
"Hey, look at those sidechicks Amy, cheyan tattendaa"
by anonalie July 18, 2013
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.
by thatonechickyuhdig January 02, 2015
Girls you have sex with on and off whilst you're looking for the one you want to go out with.
Georgia: Duncan and Siobhan slept together again last night. Do you think they're gonna go out?

Rafe: Nah, Duncan fancies Jodi, not her. Siobhan's just his sidechick.
by wolfsbaneT9 August 07, 2013
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
by NYKUH March 04, 2015
A dusty, thirsty bird that one keeps around strictly for beating up the hot box. You usually have to gas her up by alluding to the possibility of a relationship in the near future, in order to get the buns. A throw away broad that an individual wears out like a boss, unbeknownst to said individual's main squeeze. Side-chicks are usually cool with their status as a slide-off due to the fact that they either have no shame or they're blinded by love. Not someone that you'd want to bone without a rubber. Guys can be side-chicks as well which could be equally, if not even more pathetic.
My wife is headed to work so I'm just going to sleep until two in the afternoon and then call the side-chick over real quick to get my dick wet for a minute.
by YessCubanB June 23, 2014
Female equivalent of wingmen. A girl on a mission with her other girl-friend to find baes.
Did you see Chloe and Sarah got two fine boys? They must be good sidechicks.
by clossacsarman January 10, 2015

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