2. When a person is well-endowed. Male: Used when referring to a man who has a large penis. Female: Used when referring to a woman who has large and shapely breasts and/or a large and shapely ass.
"That girl is stacked up, she's packin heat."
To have kids/be a parent
A mom or dad/father or mother
Someone with kids
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
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!"