porcelain goddess vs portajohn

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. 

portajohn

noun
  • A portable restroom. 

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