big shot vs panjandrum

big shot

noun
  • A person with a reputation of importance or power. 

  • A rare and significant chance to achieve fame or success. 

panjandrum

noun
  • An important, powerful or influential person. 

  • A self-important or pretentious person. 

  • A massive, rocket-propelled, explosive-laden cart designed by the British military during World War II. 

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