ramrod vs woodchipper

ramrod

noun
  • Ranch or trail foreman, usually the first or second person in charge. The person responsible for getting the work done. 

  • Device used with muzzleloaders to push the projectile up against the propellant. 

  • An erect penis. 

verb
  • To force. 

woodchipper

noun
  • A machine for reducing wood to woodchips 

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