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my sister 

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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 

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

my sister 

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my sister by lewisgamer6 March 5, 2022

My sister 

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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 

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

my sister ext 

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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

mormon assault vehicle

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another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
mormon assault vehicle by KVRX January 10, 2005
Word of the Day on August 22, 2026

Shakira Law 

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A version of "Sharia Law" that Reform Ltd supporters tend to refer to, often by mistake.
Richard Tice of Reform now lives in Dubai, under Shakira Law, although telling Brits that we should worry about it
Shakira Law by Reformltd February 16, 2025
Word of the Day on August 21, 2026
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