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A slang term mostly used by stoners or those breaking the law in anyway. Means someone, something, or some event that draws unwanted attention to said people breaking the law, most usually authoritative attention.
Guy1:Last night my boy was mad close to getting arrested.

Guy2: What happened?

Guy1: He was driving at night with his sunglasses on cause he was stoned out of his mind and a cop saw him and pulled him over, luckily the cop didn't search him, cause he had an ounce on him.

Guy2: Damn what a heat up.
by 5558 March 21, 2011
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Mar 1 Word of the Day
One who has a mania for music.
I am a melomaniac.
by Larstait November 14, 2003
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a slang used to describe something, someone, or some event that is in no way good.
damn thats, a HEAT UP

that person is a HEAT UP

oh that happened to you? le ri heat up

that place is a heat up, lets not go there
by Javier Brito February 26, 2008
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when you are in extreme danger of getting caught doing something that your not supposed to...
yo GINO the cops are pullin us over....hide the 300 butteflies, thats nashty Heat-up!!!
by TODWEEBIT May 10, 2005
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When two people are together and things start "heating up," whether it be holding hands, making out, fooling around or having sex.

Usually used in a positive manner, but can also be used to make fun of people about an embarrassing hook up.

A synonym for "hook up".

Also called heating up.

Also used to describe ridiculous over-the-top dance moves between two people.
"Adrianne and Aaron were definitely heating up last night, I'm texting her immediately to find out what happened."

"That skank will heat up every hockey player in sight."

(After watching someone make out on the dance floor) "Hey heat up, let's go, the cab is here."
by galanggalanggalang July 24, 2008
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1. To rhyme words in speech successfully; to speak expressively

2. (v) to make something better; to make something work well.
1. He's so good, he could heat up the word orange.

2. I'm gonna heat up this wreck of a car.
by Cynshine Shade August 27, 2017
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