john vs short-timer

john

noun
  • 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. 

  • A prostitute's client. 

short-timer

noun
  • An employee who has given notice of their intent to leave. 

  • A soldier during the Vietnam War who had less than two months to serve. 

  • A person who would not be required to do a difficult or dangerous task. 

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