My brother/sister

My enemy.

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

by Spacet September 3, 2022

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

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

co-sister-in-law

Spouse's sibling's wife.

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

by Wonbig October 13, 2021

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

Best sister ever

Carly Ciancetta

Carly Ciancetta is the best sister ever.

by taybie April 1, 2019

Your sister's cleavage

That thing you try to not look at but a part of you can't look away.

You think you're the only one haunted late at night by your sister's cleavage?

by ApricotFields June 29, 2020