batty vs fanny

batty

noun
  • The buttocks or anus. 

  • A homosexual man. 

adj
  • Mad, crazy, silly. 

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. 

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