a person that is your best friend and is your enemy. a person that will always have your back whether you're related or not. a person that you live up too and love no matter what comes your way.
by smexaymama June 21, 2019
Get the sistermug. The Sinful Sisters, is my joke, on the famous, The Righteous Brothers. They are The Righteous Brothers' biggest rival.
The Sinful Sisters, are a bunch of women, who do horrible stuff, like chaining up, The Righteous Brothers' "Unchained Melody." A joke! Will The Righteous Brothers, free the melody again? Another joke!
by I'mcrazy April 17, 2025
Get the The Sinful Sistersmug. 
An annoying, moody, dramatic, little baby. Usually hard to deal with. Wildly insecure, cries far too much, cares only about looks and boys. This newer version of little sister comes with some cons:
-Emotional
-Insecure about everything
-Is 'always' right in there eyes
-Thinks she is ugly although multiple boys have had crushes on her in the span of a year.
-Emotional
-Insecure about everything
-Is 'always' right in there eyes
-Thinks she is ugly although multiple boys have had crushes on her in the span of a year.
You: Hot dog! Carson's sister is sure a teenage Little sister.
Carson: what the (CENSORED) does that even mean
Carson: what the (CENSORED) does that even mean
by Harry Tessa Tickle III December 3, 2022
Get the Teenage Little Sistermug. Half-sister.
by Simaduria July 26, 2024
Get the half-sistermug. A friend(no 'benefits') who's so close she's like a sister, or just is the mother of someone who calls you Uncle. (could be a former sexual partner, but who is only a friend now)
How many siblings do you have?
Well, I have 2 brothers, 2 sisters from my mom, & a half brother from my dad, & a courtesy sister I stilll keep in touch with.
Well, I have 2 brothers, 2 sisters from my mom, & a half brother from my dad, & a courtesy sister I stilll keep in touch with.
by cyberpope67,BC,Canada May 2, 2021
Get the courtesy sistermug. by Big Zucc May 25, 2018
Get the Sodium Sistermug.