WAG vs cack

WAG

noun
  • A wife or girlfriend of a sports star or other celebrity, originally and especially of an association football player. 

  • A wild-assed guess; a rough estimate. 

cack

noun
  • A discordant note. 

  • A squawk. 

  • Excrement. 

  • Rubbish. 

  • An act of defecation. 

  • Penis. 

verb
  • To squawk. 

  • To laugh. 

  • To incorrectly play a note by hitting a partial other than the one intended. 

  • To defecate. 

  • To defecate (on); to shit. 

  • To kill. 

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