reformatory vs sweatbox

reformatory

noun
  • A prison, especially one for juveniles; a reform school. 

adj
  • Of, pertaining to, or conducive to reform; reformative. 

sweatbox

noun
  • A jail cell. 

  • The review process that takes place in a sweat box. 

  • A small overheated cell or room used for solitary confinement or torture. 

  • A small nightclub packed to capacity where people get hot and sweaty. 

  • Any box or boxlike structure used to induce sweating, such as of hides or tobacco 

  • A compartment in a police van to hold a prisoner being transported. 

  • The room where a scene is reviewed. 

How often have the words reformatory and sweatbox occurred in a corpus of books? (source: Google Ngram Viewer )