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Sister Moon

She is a character from the show Adventure Time and is first introduced in the mini-series "Stakes". The Moon, also called Sister Moon, is one of the 5 vampire's in the Vampire king's court.

To put it simply, she is the best vampire to ever exist in the world of monsters in all universes. Even Lady Dimitrescu's got nothing on her. Maybe. I'm not sure.
Sister moon.
"Die like pigs!"
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Sister Vibes

When you see a beautiful women (typically blonde) or something wholesome and fashionable in regards to being sexually attracted to your sister.
Blonde girls give me sister vibes
by anonymous August 18, 2021
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your sister's bicycle

Derogatory phrase referring to a woman you would be embarrassed to be seen with. As in, you want to ride it but you don't want your friends to see you on it.
Guy:I'd like to have sex with that voluptuous lady over there but my friends only think skinny chicks are hot.
Friend: Yah, she's your sister's bicycle.
by GaeaKali November 30, 2014
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little sister zone

n. like the friend zone but for girls; the guy cares about the girl but due to whatever reason (small in stature, young looking, one of the guys etc) he sees her more as a little sister than someone he would go out with; tough for the girl to ever get past this stage; they might think you're kinda cute but that's as far as it gets
"Wow he's cute! You should get on that!

Nah I'm in the little sister zone.
Aah bummer!"

"He's super sweet but whenever I try to make a move, I just get stuck in the little sister zone."
by flying squirrel May 1, 2014
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lax sister

A cult of lacrosse playing girls who wear black scrunches. Upon imitation they are taught the lax girls handshake, and the position is for life and after.
“Where is your black scrunchie” -Carolynn

Right here, I know it’s a huge problem to forget the iconic scrunch as a lax sister” -maddie
by Croatian_boi February 18, 2018
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plastic sister

A relationship that appears to be in harmony on the surface, yet in fact both people hate each other or trying to compete with another in secret. Plastic sisters get jealous of each other yet maintain a formal smile all the time. Not particularly girls.
Look, A and B are obviously plastic sisters.
Why are they still together, A’s bf cheated on her with B?
That’s literally what plastic sisters mean.
by PG One May 31, 2018
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Your sister was right

You’re a wanker, complete wanker. A fucking waste of time :/

(One of Wilbur Soot’s songs, found in the album “Your City Gave Me Asthma”)
by Dreamnap March 18, 2021
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