What is hotboxing with cannabis and does it work?

Hotboxing. It’s a common cannabis colloquialism that calls to mind a particular scene: You’re in a parked car sharing a joint with a friend; all the windows are rolled up and slowly but surely, the small enclosed space begins to fill with smoke.

Using a car is only one example of how people like to hotbox, but it’s certainly the most iconic. Perhaps it’s because of Cheech and Chong’s classic, comical hotboxing scene, or maybe it’s simply because a car is one of the easiest common spaces to hotbox.