fanny vs prat

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. 

prat

noun
  • The female genitals. 

  • A cunning or mischievous trick; a prank, a joke. 

  • A fool. 

  • A buttock, or the buttocks; a person's bottom. 

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