co-sister-in-law

Spouse's sibling's wife.

co-sister-in-law.

by Simaduria July 26, 2024

sister

Female person who, in relation to the other, has a two parents in common.

My sister is a good person.

by Usery May 3, 2021

eskimo sisters

when you and ur friend kiss the same guy

sarah-“we kissed the same guy” jess-“omg we r eskimo sisters”

by penis tip 27 January 14, 2022

Anna Sisters

An Internet form of describing a Person or People with Eating Disorders. The "Anna" in this sense is Anorexia. Anna Sisters is bringing light to a consistent problem with Celebrities and eating disorders and other Mental Health issues as a normal occurrence which some internet users(specifically on TikTok) have cited that younger more impressionable people will follow in their foot steps because they see it as a Trend.

Bro I noticed the Neighbors down the block looked very skinny and sicky, You can't tell me they're not Anna Sisters!

by BardicPurple November 27, 2025

A kevins sister

A really good looking girl that's beyond anything you've seen before.

Would you look at that girl?! She's a kevins sister for sure.

by Dickhandler6999 May 12, 2025

Younger sister

The baby your mom gave birth to who isn't you. The one who is sometimes a curse, and sometimes a blessing.

Person 1: My younger sister photobombed me and now it's a meme, and a sticker!

Person 2: It's a gif, too!

Person 1: Oh boy, there goes the rest of the schoolyear.

Person 1: Who spread this rumor about me!?!?!?

Younger sister: Kat!

Person 1: Thank you! I'll tell her to take it down.

by DJ Laguna November 14, 2023

sister car

When somebody on your block has the same exact car as you, including paint color

I thought somebody had stolen my car and parked it up the block, but it was a sister car

by jevanyn July 5, 2018