craps vs diarrhoea

craps

noun
  • (preceded by the) diarrhea 

  • A game of gambling, or chance, where the players throw dice to make scores and avoid crap. 

diarrhoea

noun
  • British standard spelling of diarrhea. 

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