quarter sister

The half sister of my half sister or half brother.

Amy and Randy had Josie. Randy and Patty had Vanna. Patty and Bob had Andy.

Vanna is Josie's half sister.
Vanna is Andy's half sister.
Josie is Andy's quarter sister.
Andy is Josie's quarter brother.

by onegreenfroggie August 15, 2009

flamingo sisters

a group of girls who need a break away from the hubbys and kids...

a gang of girls who calls them selfs the flamingo sisters

by a flamingo sister September 7, 2008

Sister cowgirl

A great girl who likes to wear hoops and work at the farm, milk her cows, watch Barcelona play, likes Messi and sister James, is VERY allergic to peanuts she is very attractive and has a lot of friends like: daddy long legs, unfaithful sister, and daddy red head

Person 1: “hey look at that girl, love a cute sister”
Person 2: “yep that must be sister cowgirl

by sistercowgirl May 25, 2018

elevator sister

A sister or sibling that is your dads but not your moms.

hey have you met my elevator sister

by gaye/marshmallow_king February 14, 2017

Twin Sisters

A less crass way of saying a pair of tits

This beat is colder than two diamonds on twin sisters

by SauceMilliken December 8, 2021

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

Spear Sisters

Refers to two women who have slept with the same man.

Woman 1: how'd you score those free drinks?
Woman 2: the bartender and I are spear sisters.

by Picklesandbacon June 13, 2015