as fuck vs canny

as fuck

adv
  • To a great extent or degree; very. 

canny

adv
  • Very, considerably; quite, rather. 

  • Gently, quietly; carefully, skilfully. 

adj
  • Sounding as if it is coming through a tin can. 

  • Frugal, thrifty. 

  • Friendly, pleasant, fair, agreeable; (sometimes) funny. 

  • Gentle, quiet, steady. 

  • Careful, prudent, cautious. 

  • Knowing, shrewd, astute. 

How often have the words as fuck and canny occurred in a corpus of books? (source: Google Ngram Viewer )