Fred vs thingum

Fred

name
  • A short version of Frederick, Alfred, or Wilfred, also used as a formal male given name. 

  • The Lockheed C-5 Galaxy, a military transport aircraft widely used by USAF aircrews. 

noun
  • A novice cyclist. 

thingum

noun
  • Synonym of thingummy 

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