Blob Sister 

A term for female friends who are on their period simultaneously.

Are you a Blob Sister at the moment too?

Blob Sister by zombiemocker February 26, 2008

Sag sister 

Pronounced sAg sister (the sage is like bag).

n. Two people who share almost identical qualities and tastes.

Those two are such sag sisters, they even dress alike.

Sag sister by barc87 January 9, 2012

Wing-sister 

When a sister has or garners friends that unbeknown to her are in the friendship to meet said sisters brothers. Can be incredibly awkward when you invite a friend over to play my little ponies and the friend is more interested in the brothers comings and goings. Typically the younger sister of two or more brothers, but can be applied to older sisters as well. Usually occurs around first grade for the sisters when the brother pretends he is helping make a mud-pie, but in truth has an agenda to make the new friend the recipient of his first kiss. This anomaly can continue into adulthood. Often results will be marriage and children....

Interested Friend: Wow work was hard today. Hey who were those boys that came into to see you?
Wing-sister: Oh that was my brother and cousin.
Interested Friend: Hey wanna hang out soon?

Brother: Hey you know that one chick you hang out with?
Wing-sister: Yeah we are going to make mud pies for Mom today.
Brother: Need some help?

Wing-sister by littlesb February 13, 2012

caillous sister 

A little peice of crap

Fred:caillous sister is a piece of crap

Tom:I know

caillous sister by Deemo July 13, 2017

Your sister a mister

The only insult worse than your granny tranny.

Dave: Your mom gay
Dan: Your dad lesbian
*Dave dies inside*
Dave: don't make me do this
Dan: try me bitch
Dave: your granny tranny
*Dan explodes*
*Dan's ghost comes back*
Dan's ghost: Your sister a mister
*The entire universe collapses and everybody dies*

Your sister a mister by Pronas March 12, 2018

Ur sister is a mister 

An insult worse than than ur mum gay, ur dad lesbian, and ur granny tranny. This is the worst insult imaginable and there is absolutely no recovery from it.

Grant: ur mum gay
Mark: ur dad lesbian
Grant: ur granny tranny
Mark: oh yeah, well ur sister is a mister
Grant: *all veins inside body explode, has a seizure that causes him to pull out a gun from his jacket, and blow his own brains out.

Ur sister is a mister by mtersaak May 10, 2018

Ur sister my mister 

this will always beat ur appoinent. this cannot be reversed by “No u”

person1:ur mom gay lol
person2:ur dad lesbian

person1:No u
person2:ur granny a tranny
person1:ur grandpap a trap
person2:ur brother a nun
person1:but ur sister my mister
person2:EXPLODES into dust and goes straight to hell

Ur sister my mister by Slap Razor April 4, 2018