1. (Adj.) Warm. To be raised in temperatature.
2. (Adj.) Angry, annoyed, pissed off, frustrated, etc...
3. (Adj.) Intense.
1. "Yo dawg I just heated up this Instant Lunchβ’ you want some?"
2. "Fuck man my source didn't come through with my eighth I'm so fuckin' heated..!!"
3. "Check it out that fight's getting heated over there."
When an animal (humans included) is so horny and eager to mate, that they'll hump whoever comes along.
Some people think that only females experience this state, but male animals also have a reputation for being achingly randy.
"Great...! Just great! We forgot to neuter our cat, and now she's in heat! I can't stand the howling!"
"While in Frankfurt (appropriately), I once asked a German storekeeper for a 'heiΓer Hund'- literally 'a hot dog.' He burst out laughing, as 'heiΓer Hund' in German suggests a dog in heat." -Richard Lederer
3. To describe something that was intense. (Basically a synonym for "Intense" generally when the scenario is something that could get you in trouble.)
1. "dawg we gotta confront them dealers tonight. make sure ya'll are packin heat"
2. "Gee willikers zip-a-dee-doo-dah Batman. My teeth sure are sensitive, whether it's to the cold, or the heat!"
3. *Thieves just robbed a bank and ran into an ally way. The swarm of cop cars drive right past the ally in which the robbers are hiding, and do not see the robbers.* "Whoa dude, that was heat. Those cops almost caught us! We BARELY made it into this conveniently located ally way in which we are currently hiding in."