When you don't want anything to do with something or have no clue what is going on.
Sally: The rent is late 3 weeks.
Tom: Oo that's none of my biz.
by Vapor Frame April 2, 2009
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In a way which cannot be duplicated by others.
Bruce Lee can do Karate like none other.
I have to pee like none other.
I will kick your ass like none other.
He can smoke weed like none other.
by KenpoSam April 10, 2006
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Teacher: I gotta go on a date tomorrow so you’ll have a substitute

Student: Ooh, who are you going on a date with?
Teacher: That’s none of your concern
by Fortnite1500 November 5, 2021
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(n.) any bootleg shoe resembling Nike's flagship design. They cannot be found in legitimate shoe stores, but are always on sale in flee markets and alleys.
HAHAHA, his air force nones don't even have a check on them!
by HU 2010 February 2, 2008
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A rude way to prevent someone from joining a conversation when they’ve done absolutely no wrong
Person 1: what kind of music are you into?
Person 2: I like pop music, especially J-pop, that’s the best kind
Person 3: I like J-pop, too!
Person 2 to Person 3: that’s cool
Person 1 to Person 3: None of your business, GTFO
Person 3 leaves and cries
by Delete this account now July 2, 2023
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