crock of shit vs horsefeathers

crock of shit

noun

  • Something false or worthless. 

horsefeathers

noun

  • Nonsense; indicates disbelief. 

  • Feathering strips. 

  • Long hair on lower legs of a draft horse (e.g., Clydesdale), especially the rear legs. 

intj

  • Indicates disbelief. 

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