menstrual sister

one of two (or more) women who happen to fall on the same menstrual cycle. Menstrual sisters often times find comfort in sulking, eating, complaining, and causing a scene together.

My menstrual sister, from the stall next to mine, threw a tampon at me as I kicked my door in anger.

As a good menstrual sister, I shared my chocolate as we bled and weeped together.

by PrincessGaylordFocker December 11, 2016

Sister Ex

Your ex's ex with whom you have become friends. The friendship starts out as a trauma bond, swapping stories and comparing notes on the dude's lies, cheating, and manipulative behavior, and evolves into a genuine sisterhood.

I'm getting together with my Sister Ex on his birthday to wish him a year of pain and misery.

My sister ex confirmed he was cheating on her with me when we met.

by ElJanel November 06, 2023

sister sh00k

Sister sh00k is a beefed up sister shook meaning you are intensively shook.

“Leila cheated on Bryant with Brayden, again”

“I am sister sh00k”

by Maisenelson April 07, 2019

Stepish Sister

The daughter of your dad's (or mom's) significant other.

When I visit my dad I stay in my stepish sister's room.

by Cowboy Pete August 22, 2010

sister strong

A person who’s strong, mentally/ a way to inspire someone

Tatianna: He broke up with me, WAAAH *cries in Skinny*

Brianna: It’s ok sister strong, he was small as a chihuahua

by Ryn Harris Klebold December 26, 2018

Sister Joe

Endearing term of a sista who is close to you- to be used as a form of encouragement or in excitement over her achievements.

Yassssssss sister joe, you better work!
That’s my sister joe right thurr!!!!
Preach sister joe!

by Bigbootyblacks September 14, 2018

Leap Sister

Your Brother-In-Law's wife, or your wife's brother's wife.

My leap sister is a total psycho, I feel bad for my brother-in-law.

by pish pishter May 09, 2019