doo vs dook

doo

noun
  • feces, particularly that of a dog. 

intj
  • Used as a scat word in singing. 

dook

noun
  • dookie; feces 

  • A certain clucking sound made by ferrets. 

  • a strong, untwilled linen or cotton. 

  • A plug of wood driven into a wall to hold a nail, etc. 

verb
  • To make a certain clucking sound. 

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