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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
is amazing
Oh Em Gee, that girl is hilary!
by notevenjoking_ February 04, 2009
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 05, 2010
A person who likes to lie about the most random things, keep their phone away from others and flinches from a person holding a phone facing her
Person 1: Can I borrow your phone?
Hilary: NO! You're not touching my phone!

Person 2 holding phone at angle facing Hilary, she flinches away from it. "Stop pointing that at me!"
by notahilary August 17, 2011
She is a girl who is absolutely amazing,and happens to be a red head. She loves black men and dancing. She is the kind of girl you want to be friends with because she will always have your back. When you are friends with her you feel like family, even when you are technically not sisters. Hilary's are always hilarious and crazy. they got big donks, and know how to work them. Did I mention they like black men? at times they tend to be thieves... but its what ever
Dayummm did you see that sexy black guy?

Yeah, we better tell hilary!
by best girl ever;) January 18, 2011
effing hilarious

full of hilariosity and all things funny and such,....its just faster than writing out all th@ other shit
Girl: wow th@ was funny
Boy: ur mom is funny.....looking!!!!!
Person: OH EM GEE!!!! th@ was hil-ary!!!!
by serizzle May 10, 2007
A small red haired dwarf living in the amazon. Prone to epilpitic seizures.
Crickey! Look at that beautiful HILARY!
by Gopshop September 02, 2008