fanny vs female genitalia

fanny

noun
  • The female genitalia. 

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

  • Women viewed as sexual objects. 

  • Mess kettle or cooking pot. 

  • Sexual intercourse with a woman. 

female genitalia

noun
  • collective or unspecific reference to the vulva and vagina 

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