prison bitch vs skivvy

prison bitch

noun
  • A male prisoner used as a sex slave by another man in the absence of available women. 

skivvy

noun
  • A prostitute. 

  • A close-fitting, long-sleeved T-shirt with a rolled collar. 

verb
  • To perform menial work; to do chores, like a servant. 

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