friend 1: hey its really hot today.
Friend 2: yeah, it's because of the heatness.
Heatness is a plural of heat expressing the amount of heat excreted by something such as an object or living thing.
"Wtf is heatness?" - My Earth Science Teacher
A glass (bubble-ed ended) pipe used to smoke crystal methamphetamine
Honey? Have you seen my Heat Stick? I gotta' go to work, it's almost 9am!
When black people sweat on their forehead
Oh shit, Jerome has some dank harlem heat going on right now
The feeling you get when you know you did something that you're not supposed to, causing a wave of heat to pass through you.
When the teacher asked about who put gum on the board, I had a major heat-eek.