Surfer Sisters

When you and your friend realize you have both had sex on the same bed or in the same bedroom, but each of your sexual conquests occurred at different times.
"You hooked up on Katie's futon too?!"
"Yeah, last year. Oh that makes us surfer sisters!"
by P3nis Fly Trap May 18, 2015
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Sister Souljah

1. crazy racist with fucked up ideas

2. frikin amazing author who wrote one of my favorite books in the world.
hey, sister souljah just published a book that spoke to my heart!

hey, sister souljah just said all blacks should kill all whites!
by Angelacia May 14, 2007
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Sister-In-Law

see also PITA
a) the female sibling of a person's husband or wife.
b) a troublemaking sibling of your wife who spends all waking moments trying to cause trouble between you and your wife.
c) (WVA only), see Aunt Gladys.
My sister-in-law, Danielle, kept encouraging my wife to dump me.
by ADubbs July 01, 2005
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your sister

One hot piece of ass. Penises can be found in her mouth, pussy, and ass.
Damn, your sister is hot!
by Crackalac July 02, 2003
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saggy sisters

can refer to the scrotum or the testicles
Dude close your legs, I can see your saggy sisters!
by Cappy1 June 10, 2004
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ur sister

just like saying ur mom except for a sister as indicated in title
boy 1:u kno who i screwed last night?
boy 2:UR SISTER!!
boy 1:hey, that was mean :(
by c00kie monsta September 03, 2006
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sister-in-law

Your up there but you know you really shouldn't be.
In golfing terms shanked a shot, lands on green next to pin.
" My god that was a bit of a sister-in-law"
by Slaine March 19, 2007
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