flush toilet vs porcelain goddess

flush toilet

noun
  • A toilet that uses water to flush urine and feces through a pipe to another location, typically a sewer main in urban settings or a septic tank elsewhere. 

porcelain goddess

noun
  • A toilet bowl. 

  • metaphor for a woman, often stressing paleness, delicateness or lack of emotion. 

  • Used other than figuratively or idiomatically: see porcelain, goddess. 

How often have the words flush toilet and porcelain goddess occurred in a corpus of books? (source: Google Ngram Viewer )