When you pack a vehicle, with its windows shut, full of nude dudes and crank the heat until the vehicle reaches a sauna-like atmosphere.
Hey guys, we’ve been drinking for a few hours. What do you say we go out into the parking lot for a man sauna to sweat out some of this alcohol.
Man Sauna: define #2
Any confined space so packed with man that its temperature reaches sauna level.
There’s so many men in my man cave that it’s turned into a man sauna