clay pigeon vs patsy

clay pigeon

noun
  • A flying target, usually a disc, made of a mixture of pitch and pulverized limestone rock, used as moving target in sport shooting. 

patsy

noun
  • A person who is taken advantage of, especially by being cheated or blamed for something. 

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