personage vs thingamafuck

personage

noun
  • The creation of corporate persons named after living people. 

  • A person, especially one who is famous or important. 

  • Character represented; external appearance; persona. 

thingamafuck

noun
  • A placeholder term. 

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