doo vs poopy

doo

noun
  • feces, particularly that of a dog. 

intj
  • Used as a scat word in singing. 

poopy

noun
  • excrement. 

adj
  • Depressed, weak, or worthless. 

  • Dirty with feces. 

  • Resembling or characteristic of feces. 

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