castoff vs poopy

castoff

adj
  • discarded, rejected. 

noun
  • Something that has been rejected or discarded; a reject. 

poopy

adj
  • Depressed, weak, or worthless. 

  • Dirty with feces. 

  • Resembling or characteristic of feces. 

noun
  • excrement. 

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