Fag Sitter 

Girl who will accompany a wanna-be fag on his forays into bars or clubs to find a gay man to play with.

Jessica is such a fag sitter. I don't know why she agrees to go out with Chad while he shops for tops at gay bars.

Fag Sitter by sarasplayroom.com March 1, 2009

Blood sisters 

Term used when two girls (well, obviously) cut themselves and mix their blood. Can be drinken or just pressing the cuts against each other.

I acquired a blood sister on Feb. 18.

Blood sisters by Charlie Storm April 21, 2005

Sedin Sisters 

Two ordinary girls, that just so happen to be twins. They don't play hockey properly, and got destroyed in the Stanley Cup Finals 2011 against the Boston Bruins.

Those damn Sedin Sisters kept being pussies about being pushed.

Sedin Sisters by BostonBruins63 January 7, 2012

Cycle sisters 

Used to describe two women who hang out so much that their periods start to sync up.

Also, used to describe women hockey fans in Tampa Bay, who attend games while on their rags, and in between periods thrown their tampons on the ice, just as Detroit redwings fans throw octopuses on the ice (sometimes also called “bloody octapussies”).

Holy shit, our team is losing real bad, better go all cycle sisters To encourage their blood to pump.

Cycle sisters by BloodyVag May 10, 2019

eskimo sisters

Two women who have slept with the same man in their past.

Judy and Gail were Eskimo sisters since they both went to bed with Ronnie during their freshman year.

eskimo sisters by Joe Corey February 14, 2004

spit sisters 

usually a friend and another friend (both female) that hooked up with the same guy.
but at different times.

girl you hooked up with him too!?
SPIT SISTERS!!!!!

spit sisters by Shit mahh pants January 11, 2012

sisterholic 

Sisters or brothers and sisters who totally enjoy their love for each other and the memories they create and share.

Secrets of The Sisterholic Cult Imma Sisterholic My Sister is a Funny-Faced Sisterholic

sisterholic by A Cheese Danish Called Hamlet December 5, 2009