twaddle vs whistle Dixie

twaddle

verb
  • To talk or write nonsense; to prattle. 

noun
  • Empty or silly idle talk or writing; nonsense, rubbish. 

  • One who twaddles; a twaddler. 

whistle Dixie

verb
  • To engage in idle conversational fantasies. 

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