pooterbox
a box invented by a group of kids in southern California made for torturing friends. the kids take turns farting in the box. it traps the gas inside and it smells worse and worse with every fart. then they choose a victim who enters his head into the box to see how long he can go without passing out.
Dude, my friend went 5 minutes in the pooterbox last night! Nobody else made it past 2!