sister mist

When you make your sister cum that she sprays lubricant out of her gash in a mist like form

Do I smell like sister mist, mom wasn't home last night

by Steven Eggsworth April 9, 2017

sister blister

I sister/friend that is hot like a burn/blister on the inside and on the outside

Nah bruh, I can’t date her.. she’s my sister blister!

by snilocnahte October 24, 2017

sister data

Sharing your info (if you are a girl)with your sister.

Hi sis i need a private talk with you i wam going to give you some sister data .

by Earth Worm Sally May 15, 2018

sistermatic

Adjective. Your sister who does or is acting according to a fixed plan or system; methodical and will not budge, no matter what the consequences.

Oh yeah, she was set on doing it - she went all sistermatic!

by And. July 24, 2018

sister scandalous

A friend that is being more scandalous than usual

Paige’s nudes were sister scandalous

by Itsreallymeboi September 22, 2018

Sisterectomy

The act of removing the bitch from your life cause the only time you hear from her is when she wants something!

I really need to get a "Sisterectomy" so I can have a real life!

by LibertyCreekDrunkChick October 11, 2018

Shister mug

Someone who’s a bullshitter and is full of themselves all the time. But doesn’t realise they are so full of themselves

Pheobe is such a shister mug. She does this to me all the time I hate it.

by Jaja3 September 9, 2018