crafty vs crazy like a fox

crafty

adj
  • Skillful at deceiving others. 

  • Sneaky; surreptitious. 

  • Possessing dexterity; skilled; skillful. 

  • Relating to, or characterized by, craft or skill; dexterous. 

crazy like a fox

adj
  • Behaving in a foolish, frivolous, or uncomprehending manner as a ruse for concealing clever deeds or deeper intentions. 

How often have the words crafty and crazy like a fox occurred in a corpus of books? (source: Google Ngram Viewer )