genuine vs phony as a three-dollar bill

genuine

adj
  • Not counterfeit, spurious, false, or adulterated 

  • Belonging to, or proceeding from the original stock; native 

phony as a three-dollar bill

adj
  • Extremely phony; fake; dishonest; completely bogus. 

How often have the words genuine and phony as a three-dollar bill occurred in a corpus of books? (source: Google Ngram Viewer )