Sister

A wild beast that made its soul purpose to annoy brothers to death and beg for money. If you have one of these creatures you know what I mean. Occasionally they get you out of a tight spot from your parents.

Bro 1: My parents adopted a sister today.
Bro 2: You're dead bro.

by fastjimmy55 March 16, 2020

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sister suck

Stranger: I used to have a ####### video of me licking a girl down there but it got deleted
Me: Ok...?
Stranger: that was my sister i did that to
Stranger: she asked me to do it so i did
Stranger: i stuck my tongue really deep in there
Me: Eww
Stranger: Not going to lie, it was great
Me: Ok

Sister suck is not allowed here c:

by TidePodIngebrigtsen69 March 31, 2017

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Penis sisters

Sisters or friends that have both had sex with the same man.

Shelly and Sarah are penis sisters now that Sarah is banging John.

by Boss Panda December 28, 2021

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Satan's Sister

The maniacal mastermind who is female and more diabolical version of Satan.

Sophia is really acting like satan's sister with the way she interfered in her parents divorce.

by shaggydog123 September 7, 2021

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Younger sister

The baby your mom gave birth to who isn't you. The one who is sometimes a curse, and sometimes a blessing.

Person 1: My younger sister photobombed me and now it's a meme, and a sticker!

Person 2: It's a gif, too!

Person 1: Oh boy, there goes the rest of the schoolyear.

Person 1: Who spread this rumor about me!?!?!?

Younger sister: Kat!

Person 1: Thank you! I'll tell her to take it down.

by DJ Laguna November 14, 2023

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