sweatbox

Short definition from Wiktionary

Noun

1. 1
   Any box or boxlike structure used to induce sweating, such as of hides or tobacco
2. 2
   A jail cell.
3. 3
   A compartment in a police van to hold a prisoner being transported.
4. 4
   A small overheated cell or room used for solitary confinement or torture.
5. 5
   A small nightclub packed to capacity where people get hot and sweaty.
6. 6
   The room where a scene is reviewed.
7. 7
   The review process that takes place in a sweat box.

Verb

1. 1
   To place (a person) in a jail cell or a police van compartment.
2. 2
   To review (work) in the designated room for such reviews.