castoff vs chickenshit

castoff

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

adj
  • discarded, rejected. 

chickenshit

noun
  • (A) petty and contemptible thing(s). 

  • A low-ranking officer who lords over and needlessly makes life miserable for his underlings; a petty, abusive martinet. 

  • coward 

adj
  • cowardly 

  • petty and contemptible; contemptibly unimportant. (Compare bullshit.) 

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