piff vs pigswill

piff

noun
  • Piffle; nonsense; rubbish. 

adj
  • good or attractive. 

verb
  • To throw something vigorously. 

intj
  • An exclamation of annoyance or contempt; pish; pshaw. 

pigswill

noun
  • nonsense, rubbish 

  • swill: slops fed to pigs 

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