carrot vs slush fund

carrot

noun
  • Any motivational tool; an incentive to do something. 

  • A redhead; a ginger-haired person 

  • A vegetable with a nutritious, juicy, sweet root that is often orange in colour, Daucus carota, especially the subspecies sativus in the family Apiaceae. 

  • A police officer from somewhere within the British Isles, but specifically outside of Greater London. 

  • A shade of orange similar to the flesh of most carrots (also called carrot orange). 

  • Someone from a rural background. 

verb
  • To treat (an animal pelt) with a solution of mercuric nitrate as part of felt manufacture. 

slush fund

noun
  • Money that has not been hypothecated or dedicated to a particular purpose, or which is used for a different purpose than originally intended. 

  • Money stored for illegal or dishonest purposes. 

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