TO get over excited and to start things you do not mean to start. It's a form of getting out of control. Over stepping a boundary.
"yo don't hype up szeen"
"your girl shyniqua is hypin' up, still."
"slow your roll, quit hypin' up".
"relax, no need to hype up on no one"
by Shex May 2, 2006
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Very excited for nothing
guy 1: shortie gave me her number
Guy 2: damn u hyped up she not even that bad
by Itz DIDDY December 5, 2014
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(To) Hype up means to feel overly confident in yourself for a brief moment and lose control through being overly happy and having an adrenaline rush.
Mostly in cases you get hyped up to music and dance and sing or your friends making you feel like a bad bitch and you can't control your happiness.
"Amanda is hella hyped up look at her feelin herself on the dance floor"
"Man I'm so hyped up I can't stop smiling"
by Meu26x July 2, 2017
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Get high of of a mix of Adderall and Oxycodon
"Dude i got such a hype-up off that crushed up oxy and adderall when i snorted it"
by Johnny Ravencall April 11, 2008
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To make someone horny by being indirect with cheering and showing off.
Did you hype up Becky last night?- John

You know I did, then she grapefruited this dick? Tom
by Sokd August 9, 2017
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to get overly excited about someone else doing something well.
if a boy is hyping up his girl he is being extra excited about how good she looks or how great she is.
boy: oh my god babe you look so good in that picture damn my girl is the hottest

girl: aw look friends my cute ass bf is hyping me up!

scenario 2:
girl: ya whatever i like your new shoes

boy: girl wyd hype me up sometimes JEEZ
by @hypegirl June 4, 2017
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