Sister Lesbians 

Two women who are either lesbians, or sisters, or both. It is often times difficult to determine which.

- Yo, why are those two girls holding hands on a cruise together?

- Dude, they're sister lesbians!

Sister Lesbians by Ndubya March 23, 2010

Sister from another pisser 

The female version of brother from another mother

a girl: hello my sister from another pisser

Sister from another pisser by dinky Deli Food October 15, 2011

sister johosph 

refering to ancient times of an old nun, capable of jacking off her husbands small bald genatalia, but having ones husband stolen from sibling, aka mean catholic skool bitch: see steve guinta

god damm why does my teacher have to be such a sister johosph

sister johosph by steven guinta (lmfao travis...head ache, u kno ) October 15, 2003

Sister Fiend 

One who continually pursues his friend's sisters. Will go through great lengths despite complete futility along with a consistent beating.

You've been talking to my sister on facebook, you're following his sister on twitter, nigga you a sister fiend!

Sister Fiend by just some guy typin some shit. February 1, 2013

sister slap 

A sister slap is a slap that may be administered by an older sister to a younger sister, when said younger sister is acting a fool

Yo, my younger sister got a speeding ticket so I gave her a sister slap...across her face

sister slap by Louroo October 20, 2013

sister rock 

Rock music that you would be embarrassed to be seen listening to because your sister listens to it also.

Dude 1: Hey, want to put on some Counting Crows?
Dude 2: No way, dude. Thats sister rock.

sister rock by Farrakhan's Endorsement January 25, 2014

sister wooer 

A man who typically gets together with his girlfriend/ wife's sister (before they get together that is otherwise we wouldn't really call him a man)

OMG, he made out with Jane's sister right before they got married, he is such a sister wooer.

sister wooer by janedoeanon March 29, 2015