Doing a girl while wearing a condom covered in Icy Hot.
"Dude, how did you break up with your girlfriend so easy?"

"Last time we fucked I was packin' heat; never heard from her again."

"Pro."
by Dwight Fart Schrute May 16, 2007
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kaia: what is packing heat?
cory: are you serious?
cory: OMg lol
kaia: yes, what does it mean?
cory: to take a dick up the ass
kaia: really? ooh lo
by coryp January 26, 2005
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When a females pants are so tight in her crotch area you can see her labia through them. This phenonmenon makes it look like she has a yo-yo down her pants. IE Cameltoe
Yo that broad is totally packing a yo-yo!
by D-Unit September 8, 2003
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A deal breaker between two people attempting to form a relationship.

To have kids/be a parent
A mom or dad/father or mother
Someone with kids
Friend: Girl, that guy at work is hot!

Other Friend: I'm sorry but I'm pretty sure he's packin' heat.

Person A: I met the most amazing guy the other day, I know we're soul mates for sure.
Person J: Do I know him?
Person A: Yeah it's C from Giant Eagle
Person J: Oh my god, he's packin' serious heat!
Person A: Aw man, forget that!

adjective; to describe someone
by Jessiee February 24, 2013
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when a female is wearing a mini-skit or a short dress, and is wearing tight underwear in which you can see her hairy vagina, which looks likes two lips.
The other day at work i was eating lunch,and i droped my fork and as i went back up i seen this women it looked like she was packin a hairy yoyo, but i checked again she was definitely packin hairy lips.
by succia minghia January 3, 2010
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Making sure you have a condom with you before going out for a night of drunken debauchery when it is more likely than not that you will end up hooking up with some skeezy rotten-crotch at the end of the night.
Chance: "Yo G. You packin' heat tonight?"

Hunter: "Fo real B. Last weekend I ended up bare backin' that nasty bander-snatch and had to go to the clinic on Monday to get my shit checked. You bet your sweet nuggets I'm packin' heat from now on!"
by TripWire9 June 1, 2010
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