bubble guts vs craps

bubble guts

noun
  • A condition where one experiences discomfort, bloating, and cramping in the stomach or digestive tract due to gases caused by extreme hunger or explosive pre-diarrhoea. 

craps

noun
  • (preceded by the) diarrhea 

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

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