mary-kate spellman is the official wife (wifi) of ciara hession
why is she obsessed with finn?
she has to be mary-kate spellman
by louistomlinsonnnn October 17, 2021
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a term meaning "what's up?" or "what's goin on?"

Guy A: man, what's the Mary-Kate?

Guy B: just eating a quarter pounder with cheese. what's up with you?
by danny foshizzle2 July 18, 2009
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Mary-Kate Olsen, along with fraternal twin sister Ashley Olsen, began as a child star and grew to become a marketing tycoon of products aimed at pre-teen girls such as clothes, books, dolls, and fragrances. In 2001 she suffered from anorexia at and checked into treatment. She is, however, still hailed by many online anorexic communities as an idol and "thinspiration".

Birthdate: June 13, 1986
Best known for: playing Michelle Tanner of Full House
Other shows: Two of a Kind, So Little Time
Other: have recorded an album and made several small-budget movies for children and tweens
Though many stars are currently jumping on the "thin is in" bandwagon, Mary-Kate Olsen is one of the few who has admitted to an eating disorder.
by Nicole1921 July 19, 2006
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When a girl called Mary Kate sucks a guy off while fingering her two best friends and sitting on a guys dick the guy is usually called Harvey
Yo ma. She gave me a dirty Mary-Kate
How did it feel?
by Harvey eggleston March 2, 2022
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regulated selections of intake consisting of cocaine, coffee and cigarettes.
I saw Julio smoking at Starbucks, he's on the Mary-kate diet.
by josh t December 3, 2005
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A diet wherein you don't ingest anything at all.
The Ethiopan people are on the Mary-Kate Diet.
by Drama_King January 25, 2008
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Underage girl that would be worth the jail time to nail.
I'd mary-kate and ashley your sister anytime!
by Jammindy June 12, 2007
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