incest is the best put your sister to the test 

:) :) :) :) :) pie

:) :) :) :) :) bananas

incest is the best put your sister to the test by cheeseguy May 24, 2004

sisterfister 

Strictly, one who indulges in a particular form of incest, using only their hand (see fister. Often used as a term of contempt, and shortened to "sissy" on account of their unadventurousness.

See also brotherfucker.

Your brother's such a sisterfister, you know.

sisterfister by Lucifer B September 20, 2005

little sister syndrome 

When the younger sister of an older sister is more attractive than the latter

Laura is hot but her sister Rachael is infected with little sister syndrome.

little sister syndrome by 4pumpwonderchump July 15, 2009

"Sister" 

The term utilized (including quotes) to refer to a lesbian's significant other when said lesbian is seeking to keep their gay sexual orientation unknown.

Elizabeth says she is bringing her "sister" on the company trip. No one is buying that dyke's bullsh#t.

"Sister" by Bdude12 September 21, 2007

Pole Sister 

Pole Sister

Two prostitutes who have had sex with the same man in a short period of time.

Candy, you had sex with Big John the last night, that makes you my pole sister as I just did him on Monday Morning.

Pole Sister by Cristy Cupps November 25, 2009

Older Sister 

Will make it seem like she is so smart because she knows algebra but no police man will say “ you are under arrest unless You know what x is ”

Lil marco: do have a older sister?
Fam squad:no I have a reason to like siblings

Older Sister by Lil fam September 17, 2018

Soul Sister 

The female equivalent of a blood brother. A best friend of the female persuasion that you consider family. Most times, the feeling is mutual.

Jackie and Rachel are soul sisters. It's like they have the same mother!

Soul Sister by wolfpacleader1986 October 10, 2010