Line Sister

your sister who stands in LINE with you while pledging,not chilling in a classroom.

whos tha girl you were talking to?
oh thats gia my LINE SISTER, we put in work for our letters
ohhh okk!!!i see you!

by macademianut215 September 20, 2012

sister penis

something that Sekretsu can't find out what it means.

"No, I'm not going to hentai.org to find out what sister penis is."

by Iking01 March 27, 2015

lipstick sisters

Girls who have been with the same man at different times

Did you know that Jill and Sara arelipstick sisters they both slept with Kevin.

by Video vixen November 27, 2015

sister dick

a. positive - when the one girl is the cool girl among the group of guys.

OR

b. negative - when the one girl is the annoying girl like during a sports game.

** always - a girlfriend you would never fuck

shut up and watch the game, stop being such a sister dick

by purplepalace October 15, 2011

Elastic Sisters

Noun. The name of a group of women who have had sex with a common man.

The female equivalent of Eskimo Brothers.

Suzie: "You had sex with John? Me too!"

Mary: "Elastic Sisters!"

by TallZack July 29, 2011

Lehman Sisters

Wives/girlfriends of recently-orphaned Lehman Brothers executives who bond to share their collective, unexpected fall down the socio-economic ladder.

Amande and Jane are now the Lehman Sisters 'cause the Devil took away their Prada when their boyfriends lost their jobs on Wall Street.

by Mohit Hira February 26, 2009

sister complex

The belief that an older brother is the only one who can rip or make fun of his younger sister.

Guy 1 "Yo, dude, you know I'm the only one allowed to take the piss out of my sister!"
Guy 2 "You and your sister complex.."

by LUFCforlife June 2, 2008