your sister's bicycle 

Derogatory phrase referring to a woman you would be embarrassed to be seen with. As in, you want to ride it but you don't want your friends to see you on it.

Guy:I'd like to have sex with that voluptuous lady over there but my friends only think skinny chicks are hot.
Friend: Yah, she's your sister's bicycle.

your sister's bicycle by GaeaKali November 30, 2014

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

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?

Your sister's cleavage by ApricotFields June 29, 2020

Your Sister's a mister 

The ULTIMATE Insult To end anyone's career in One saying

Your mom Gay Lol
While Your sister's A Mister

Your Sister's a mister by Samuel_Le_Jackson May 21, 2018

your sister’s easy 

Your sister gives kisses to easily to people.

“omg, your sister’s easy!” That means that your sister gives out kisses to easy.

your sister’s easy by Shkabeuksbdhzj October 3, 2017

Your sister’s easy 

Your sister’s easy is pretty much saying that a girl kisses too easily. Kisses are supposed to be special.

“Omg, Your sister’s easy!”

That is saying that someone is kissing people too easily.

Your sister’s easy by Shkabeuksbdhzj October 3, 2017

Time To Chuck My Muck Over Your Sister's Jubblies 

A politer way of saying to a friend, i'm going to fuck your sister then sloppy jizz over her tits

Dave: Bobby, since you wouldn't make me a brew its Time To Chuck My Muck Over Your Sister's Jubblies

Time To Chuck My Muck Over Your Sister's Jubblies by Greg_the_Smeg February 7, 2019