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1. Heat Wave
When a wave/group of hot girls walk your way. A rare, yet pleasureful moment.

Minimum of 5 girls to be considered a heat wave.
Brosef 1: Uh oh bro, heat wave 1 oclock!
Brosef 2: Time for the gun show...
2. Heat Wave
The act of a male masturbating into a portable heating fan, spraying the warmed ejaculate back upon him.

The winter time equivalent of a 'cool load.'
It was so cold out yesterday, I just stayed in and cranked out a Heat Wave.

Carl's so dumb, he's always busting out a cool load in the winter and a heat wave in the summer!
3. Heat Wave
The wave of heat that hits your face when you open the dishwasher.
Guy 1: ''I got hit by a major heat wave last night doing the dishes!''

Guy 2: "I got hit with one this morning."
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