john vs whoremonger

john

noun
  • A prostitute's client. 

  • A device or place to urinate and defecate: now usually a toilet or lavatory, but also (dated) a chamber pot or outhouse. 

  • A male mule. 

  • A Western man traveling in East Asia. 

whoremonger

noun
  • A frequent customer of whores. 

  • A procurer of whores; a pimp. 

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