stir up vs whip up

stir up

verb
  • To arouse or excite (passion or action). 

  • To move or disturb slightly; to make turbid. 

  • To mix (ingredients) by stirring. 

whip up

verb
  • To arouse or excite. 

  • To lift or snatch up suddenly. 

  • To produce (something) quickly, especially food. 

  • To beat (stir) (a liquid) quickly so to introduce air and form foam. 

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