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my sister 

A person that I have to share a bathroom with. She’s also a girl?
Joe: Ugh man my sister is so hot.
Dan: •_•
my sister by Whyidontdate April 20, 2018

My Sister 

A FUCK ASSHOLE BITCH ASS. GIRL CAN WEITE FUCKING WORDS WHILE AT THE AGE OF 9. THIS GIRL IS FUCKING RETARDED

my sister 

my sister by lewisgamer6 March 5, 2022

My sister 

It means a Karista Mumpower a strong not baby hands girl that likes to fight people.
Josh thought he could fight her until he realized she was My sister.
My sister by Trishaam April 14, 2022

my sister sucks 

your sister is not cool, is rude, and makes you want to kill yourself
my sister sucks by charly6187 November 20, 2016

my sister ext 

A video of a woman with an ultra-realistic face mask on, most likely to test out how it looks on her. This video is considered eerie and uncanny by most people, but only because of the realism of the mask she wears. It is nothing outright terrifying (No gore, no disfiguration, etc.)
Hey, I just watched my sister ext. Isn’t the mask she wears pretty interesting?
My sister ext is honestly pretty scary, even though it’s just a video of a woman wearing a realistic mask.
my sister ext by Wafou! May 31, 2022
More from Urban Dictionary

Throat Sweats 

The feeling and build up in your mouth/throat of saliva that sometimes accompanies nausea.
Oh man those burritos gave me the throat sweats, I hope I don’t have food poisoning.
Throat Sweats by TacoFings420 April 23, 2024
Word of the Day on October 11, 2026
Being ignored by someone when making a statement or asking a question. Also known as blanked and turfed.
Person 1: Did u watch ** last nite?
Person 2:......
Person 3: O no u got aired!
aired by Pietro February 9, 2005
Word of the Day on October 10, 2026
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