outhouse vs shithouse

outhouse

noun
  • An outbuilding, typically permanent, containing a toilet or seat over a cesspit. 

verb
  • To house in a separate building. 

shithouse

noun
  • An outhouse, an outbuilding used as a lavatory 

  • A coward: one who is overly fearful or timid. 

  • A filthy place. 

verb
  • To engage in persistent unsporting behaviour or gamesmanship; to play in a cynical, ugly manner; to cheat without being punished. 

adj
  • Of poor quality. 

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