big wheel vs muckamuck

big wheel

noun
  • A person with a great deal of power or influence, especially a high-ranking person in an organization. 

  • A Ferris wheel. 

  • A low-riding tricycle with a large front wheel. 

muckamuck

noun
  • A person in a position of power or authority, or of high status. 

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