Little sister

A really fucking annoying person that is someone's younger sibling and is a girl at the same time. Usually annoys the shit out of their older sibling and the older sibling's friends.

Boy1: Holy shit, your sister is so fucking annoying.
Boy2: I know right? I wish I didn't have a little sister.
Boy1: Yeah, she always walks in on us when we're playing games and she never fucking leaves us alone.

by lolimaginebeingaretard March 25, 2023

National Smack your sister day

Smack your sister on August 8th

Smack your sis National Smack your Sister Day

by Smack your sis August 8, 2021

Carl’s sister

One hell of a ride. Carl’s Sister.

That bike is so smooth and the ride is so much fun, it’s like Carl’s sister. One hell of a ride.

by Mkultra51 September 18, 2023

Sister

A person whom can be cool or shitty or annoying or a wise girl

My sister is older than me.

by Waffles2804 October 28, 2017

Big sister

glorified slave of their younger sibling (especially if it's a brother)/parents

I don't have a big sister

by Hello-553669 April 19, 2025

Council Bluffs Sister

Incestual Relationship; also applies to other family members.

"Where's Jim tonight?"
"Oh, he's out with his Council Bluffs Sister again..."
"Wow. Won't their kids have hooves?!?"

by Arrogant Joe March 14, 2022

ur sister mister

ur sister mister- the ultimate comeback that can never be countered so you always win with.

jeff: ur grandpap a trap

dave: ur sister mister

everything dies the earth implodes and the big bang happens again

by ur mum gay lol May 16, 2018