1. plural of hotbox: overheated bearings or axles on railway cars
Usage: railway terminology
2. plural of hotbox: enclosed spaces filled with smoke, especially from marijuana
Usage: slang

1. third person singular present of hotbox: to smoke marijuana in an enclosed space
Usage: slang

Examples

• The train inspector checked for hotboxes during the routine maintenance stop.
• Several hotboxes were detected by the thermal sensors along the track.
• The mechanic repaired the damaged hotboxes on the freight car.
• He hotboxes his car every weekend with his friends.
• The garage became one of those hotboxes after they lit up.