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shit sisters

Two people shit into the same toilet bowl

When the toilet was blocked, Kirsty and Alan had no choice but to become Shit Sisters

by batshitcray February 11, 2016


three sisters

The combination of the mind altering drugs : Xanax , Aivan , and Klonopin.

I did the three sisters mix and don't remember having 4 babies.

by rparis93 October 9, 2011


sister suck

To perform cunnilingus on another member of your sorority, typically as a friendly favor rather than a typical hookup or relationship

Sister 1: It's been too long since I've gotten laid, I wish someone would sister suck me.
Sister 2: I got this.

by trippletriangle April 25, 2015


Urban sisters

a group of similar aged women who meet regularly to discuss life's experiences

my urban sisters are coming to brunch on Sunday

by MiddleAgedMoose May 17, 2017


Peter Sisters

When you and your friend fucked the same dude. Not necessarily at the same time.

You fucked Jon last night?!? *HIGH FIVE* I fucked him back in high school! We're now PETER SISTERS!!!

by bigbootyjanet November 5, 2018


Lehnen Sisters

Two girls that share a relation to each other such as sisters that do anything in their power to flirt with anything that has a penis. Mostly refered to as skank.

Bob: Man did you see those girls flirting with me?

Sam: Yeah they were acting like such Lehnen sisters.

by Jovial Badger March 27, 2009


Sister Snake

Teenage girls use it to express distaste for someone.
Sometimes they use it to address their friends.

"Ayyyyy what's up sister snaaaaakes!!!"
"OMG what a sister snake am I right."
"Don't talk to me sister snake."

by Gastik November 27, 2018