Hit your sister day 

Grab your sister, smack her in the face and if anyone gets mad at you for it say its smack your sister day

Friend: *smacks their sister*
Friend 2: Dude!! Why did you do that?!?
Friend:Dont worry, its Hit your sister day

Hit your sister day by Aliee00000 October 26, 2019

twisted sister 

1. A heavy metal band popular for a short while during the 1980's.

2. Someone who is sick, disturbed, perverted, or deranged.

"We're Not Gonna Take It" and "I Wanna Rock" were Twisted Sister's two biggest hits.

That guy is a real twisted sister.

twisted sister by Andrew Morse September 23, 2006

Your sister's bush

Your sister's pubes, usually said as an insult. This can be used to end an argument easily.

Steve: We should do our homework.
John: Chill bro.
Steve: Do you want to fail?
John: No.
Steve: So we should do our homework.
John: YOUR SISTER'S BUSH.

Your sister's bush by ImAwesomeProductions May 1, 2012

twisted sister 

a fucking awsime band intent on bing as tough as possible while dressing in drag and making awsome music.
known for the songs, i wanna rock and we're not gonna take it

we're not gonna take it, no we ain't gonna take it, we're not gonna take it anymore

twisted sister by amelia June 8, 2005

Hey Soul Sister 

This single by Train gained popularity after headlining the compilation album "Now That's Who I Call a Bunch of Posing Prancing Cockmouths, Volume One."

If your date starts singing along to the opening buttfuck moans of Hey Soul Sister, shove her out of the car and run.

Hey Soul Sister by butttt June 13, 2010

Line sister 

A girl whose pledging a sorority with you.

Stacey: Whose that? (indicating Myka)
Amber: Oh, Myka? That's my line sister! Love her. We both became apart of Delta Sigma Theta together.

Line sister by dser July 14, 2011

hot sister 

Someone's sister that is well known to the whole guild.

example: Have you met Flemo's Hot Sister? Who hasn't!

hot sister by Ionator June 18, 2017