anus vs tradesman's entrance

anus

noun
  • The lower orifice of the alimentary canal, through which feces and flatus are ejected. 

  • An impolite, unpopular, or unintelligent person. 

tradesman's entrance

noun
  • The anus. 

  • The entrance to a large house, used by tradesmen to deliver goods and services; usually at the side or rear. 

How often have the words anus and tradesman's entrance occurred in a corpus of books? (source: Google Ngram Viewer )