An evening chiefly designated for, and defined by the recreational consumption of cannabis. The night may entail other pleasures such as those of the flesh, entertainment (television or otherwise), and/or food/candy, but these are all secondary to the enjoyment of cannabis.
I've picked up several pre-rolls, chosen a film to enjoy, and stocked the kitchen with chilled natty wine, snacks, candy, and pizza. It's going to be a classic stoner's night.