one who loves hard-core make out sessions with small Asian men. likes to lick ones balls while having cum spurted at her face. always up for a good time, but most always is part of the bad times. bushy eyebrowed, narrow minded, snout faced homosexual. not one to talk to in public. ralated to a species of jack ass, usually mates with them in the spring.
Hey were you talking to a mari-kate yesterday at the mall?

What?!?! Of course not. eww.
by Bossin September 18, 2008
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Mary Kate's are usually beautiful and completely selfless. They are lighthearted but determined, strong, and independent. Mary Kate's are very friendly but can be intimidating because they are so independent. Mary Kate's are usually worldly and wise beyond their years. They have old souls but know how to party and can fit into the different aspects of modern day life. Also, they are physically beautiful and super sexy!

They are very trustworthy and reliable. They put others first always sometimes to the point of forgetting about their own feelings. They have sacrificed a lot but are thankful for all they have. Usually brunettes.
Guy: Who's that brunette over there?
Girl: Oh, her? That's Mary Kate!
Guy: Wow, she's beautiful!
Girl: She only dates foreign men, sorry. And we're best friends so you can't have her.
Guy: You've never even talked to her before.
Girl: I know, but just look at her! She's so radiant, I feel like I know her!
by Roseandrise June 23, 2013
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1. A super sexy smart girl who is your bestie she can be atheletic and indepenednt she is fun loving and can be a crazy hooligan - nothing like mary-kate olsen
2. Some one who is like mk olsen, but there really is only one mary kate olsen
by samers101 January 28, 2009
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An amazing girl. She's funny and smart, and all around an cool person. She isn't a bitch, but she will make sure that you understand her thoughts on a specific subject. She's athletic, artistic, and a great person to be-friend. I know I'll never want to lose the Mary Kate in my life.
Guy 1: Hey Mary Kate. What's up?

Mary Kate: Not much. I just finished my newest sketch, and now I'm headed to speech and debate.
by Aggressive_ace November 29, 2012
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A Mary Kate is a keeper. She will eat all of your food but you well still love her because how big her ass is. She is so sexy and good in bed. Men tend to love Mary Kates. She has a bad side though. She well frecking kill you if you insult her. You better run if she's on a bad mood. She's not mean but she is still very hardcore. Usually Mary Kates pretend to like some people but she hates your guts. If you break a Mary Kates heart she will breck your neck. She is beautiful, hot and funny. Everyone is jealous of Mary Kate because of that.
girl: I wanna be Mary Kate
guy: I wanna be near her
girl: her ass is bigger than my house
guy: bad ass
girl: hardcore af
girl: and hot af
guy: hell yah

God: I created Mary Kate well
by birdsaresexyaf May 14, 2017
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a Mary Kate is an energetic, artistic, fun - loving girl. She has a great smile, and a cute body. She's really into music, and has an extremely unique taste. She's a big-time party girl, and is unafraid to experiment... with ANYTHING. Her clothing choices are even more unique than her taste in music, but be careful. a Mary Kate can be a bit of a poser or attention whore at times, but everyone still loves her.
1: What is Mary Kate wearing?

2: Who knows, she probably just picked it out for attention.

1: I don't care, she looks GOOD!
by gthfk8774 December 29, 2011
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