fanny vs sit upon

fanny

noun
  • The buttocks; arguably the most nearly polite of several euphemisms. 

  • The female genitalia. 

  • Women viewed as sexual objects. 

  • Mess kettle or cooking pot. 

  • Sexual intercourse with a woman. 

sit upon

noun
  • buttocks, bottom 

  • small, portable cushion for sitting on 

verb
  • Synonym of sit on (“block, suppress, hold back”) 

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