to attract negative attention to yourself, esp. attention of the police.
You're hot boxin selling that shit on the busiest corner in the city.
When you and your partner have sex in a car, the windows fog up. this is hot boxin. Or when you and your friends light up a joint and the smoke clings to the windows.
boy: last night i took my gal to makeout point
friend: oh yeah! what happend
boy: well we were getting hot and heavy but we had to stop
boy: the po-po came when the car started hot boxin
1) rolling up all the windows in a car(or in any small inclosed area) smoking, so known of the smoke gets a away, and officaitly making you higher
2) snitching, or saying somthing loud enough that a person that wasnt suppose to know can over hear.
1)Jake: aye kev, how we gonna get high off of a 20?
Kevin: Fuck it well just roll up the windows and hot box it
2)Mark: So steve we pickin up those chicks from last night
Jamie: What girls!?
John: Chill mark, you hot boxin