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sister forever

Eden the girl that is always there for you no matter what!
by Idk and idc March 2, 2014
mugGet the sister forevermug.

Sister Subreddit

Literary just a term created by the users on reddit that just means a subreddit that is similar to another subreddit that they created. It is also shortened to "Sister sub".
Check out our sister subreddit of r/fakehistoryporn called r/fakeprehistoricporn
by GROVEnotusedb4 May 31, 2020
mugGet the Sister Subredditmug.

Sword Sisters

Much like eskimo brothers, sword sisters are two or more women that have shared the same penis.
Wow those two chicks have all had sex with the same dude guess that makes them sword sisters
by Sir jay dom August 14, 2017
mugGet the Sword Sistersmug.

Sister whipped

When someone is hit by a nun with a bible or yard stick for swearing at church/school. Also applies to when one's biological sister whips him/her with a long object.
Person 1: God***n it!

Nun: (Slaps person 1 in the face with bible)

Person 1:Dude I got sister whipped at home
Person 2: LOL
by airsoftkillm March 4, 2011
mugGet the Sister whippedmug.

step sister

The person who is always complaining about how you took her room when you moved in
my step sister hasn't stopped glaring at me since i moved in
by LunaJade April 3, 2015
mugGet the step sistermug.

sister-biffle

a sister who is also a best friend, or a friend who is closer to you than a friend and is more like a sister.
My sister, Kim, is also my best friend; she is my sister-biffle!
I love my friend Kristin so much, we are such good friends that she is more like a sister to me; she is my sister-biffle!
by BAD1484 May 13, 2010
mugGet the sister-bifflemug.

Sperm Sisters

Women who all have a child with the same mans sperm and support each other for the sake of the children.
"We didn't know too much about each other, but now that we're sperm sisters our sons have the right to know their brothers from other mothers"
by milk9837 October 18, 2011
mugGet the Sperm Sistersmug.

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