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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.
Heat up by 5558 April 6, 2011
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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
heat up by Javier Brito February 26, 2008
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."
heat up by galanggalanggalang August 20, 2008
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.
Heat up by Cynshine Shade August 27, 2017
What the weather around here is about to do.
Hym "Hey, Jordan, the weathers about to heat up! Hurry up! The garbage is gonna start to stink! Hidden forbidden garbage-can, Jordan! Behold the ultimate masterpiece!"
Heat up by Hym Iam April 8, 2024
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!!!
Heat-up by TODWEEBIT May 13, 2005
A fake term only used by people named Ray. The imaginary phrase is generally used to describe a hard time or messed up situation. It should be noted that as it is fake, Heat-Up can be used in any situation despite not making any sense. The made up word has no basis in fact and was only created to be part of the conversation.
Person A: Man, I’m glad I‘m finally out of that situation. It was really messed up.

Person B: Yeah, it was a Heat-Up for sure!

Person A: A what?!? That’s not a real thing. Stop making words up.
Heat-Up by SlyDiablo April 9, 2023
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