Having a concealed firearm for protection or to carry out violence.
"Don't come to Brick City, unless yo' packing heat."
by Diego August 31, 2003
To carry a firearm. Usually refers to the act of carrying a handgun.
Not many people know it, but sweet little old lady Smith is always packing heat.
by Super Gerbil July 12, 2004
To be in possession of concealed firearms. To be carrying
"He is packing some serious heat under that trenchcoat"
by Gumba Gumba February 23, 2004
The concept of one's penis size being large while during a flaccid state.
"I saw his bulge, he must be packing heat!"
by Bigdicklarry February 29, 2008
When one takes a shit and the projectile travels so fast it splashes toilet water all over you.
After eating two cans of jalapeño frijoles, I was packing heat so bad that I had to use a towel to dry off!
by ElJedesote March 17, 2015
A term referring to carrying a weapon with you. A small example is a concealed weapon, but a better one would be being heavily-armed with a machinegun.
"Daniel Pearl should've been packing heat over there. Damn customs."
by Dave September 11, 2004
Carrying a weapon such as a Gun or knife
Yo dat catz packin heat forreal
by Influenced StyleZ January 31, 2003