co-sister-in-law

Spouse's sibling's wife.

My co-sister-in-law is a good person.

by Wonbig October 13, 2021

test tube sisters

Sisters by heart. Best friends who are so alike it is like they were created in a test tube. (Brave new world)

Omg we are basically the same person!
-we are like test tube sisters

by Bæ17 February 20, 2015

My brother/sister

My enemy.

- My brother/sister is as lank as a twig.

by Spacet September 3, 2022

sister catherine patricia

The cutest sista at Saint David

Omg did you see sister Catherine Patricia today? She was slaying!

by timplzcomeback January 26, 2017

autumn aspens sister

Chris things shes like super hot and she is aspens sister

Chris: hey autumn aspens sister, your pretty hot

by itsjasonlol February 26, 2019

Hillbilly sister sticker

Foreplay act ; see Kentucky plug for full definition

“Hey paw, you should see what marybeth and me invented, we call it the hillbilly sister sticker”

by Tainted Sasquatch May 20, 2021

Your sisters cute

Some thing a douche bag yells out a window to a couple

*car driving be with douchbag hanging out*
"Your sisters cute"
Boyfriend feels embarrassed as if he doesn't look good enough to date you.

by Brichards July 31, 2016