a girl who eats pizza and drinks beers with the guys whilst maintaining a sense of ladlylike decorum. she also always dresses to the nines, even when she's sleeping
You see that girl over there doing jello shots and wiping up after herself? Yeah, she's a total hilary.

That girl is such a hilary, she showed up to a pajama party in Jimmy Choo slippers and a Chanel bath robe!
by agirlnothilary May 13, 2009
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It means smart, sexy, georgeous, loving, protective, kind, nurturing, always there for you when you need them type of friend. Also she is an amazing dancer, and once she trusts you, she will blow you out of the water with her dancing.
Jeff "woah dude, look at that girl dance.....who is she????"
Mark"thats Hilary..."
by purtycrazybird91 December 6, 2010
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a girl who is pretty, hot, sexy, beautiful, gorgeous, skinny, fierce, compassionate, sympathetic, friendly, nice, kind, playful, adventurous, sizzling, steamy, amazing, super amazing, extraordinary, magnificent, stellar, wonderful, inspiring, and a whore.
she also tends to be an outright stoner.
She's perfect! Indeed, that must be a Hilary!
by idfuckthat12345 April 26, 2009
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funnier than the norm. in fact, funnier than just plain olde 'hilarious,' because you took the time to capitalise the letters L-A-R to emphasise the second syllable.

pronounced: hill LAAAR ee us
did you see the new cheat commandos? the one with 'commandos in the classroom?' it's hiLARious.
by elemental September 30, 2005
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word used to cover embarrassment during moments involving hot highly fanciable men
that is so hilariously funny
by you May 30, 2004
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when your obsessed with something very much and cant stop thinking about it.
holy shit, that girl is such a hilary..
shes obsessed with cheese.
by liam walker January 22, 2008
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