pabulum vs piff

pabulum

noun
  • Bland intellectual fare; an undemanding diet of words. 

  • Food for thought. 

  • Food or fodder, particularly that taken in by plants or animals. 

  • Material that feeds a fire. 

piff

noun
  • Piffle; nonsense; rubbish. 

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

verb
  • To throw something vigorously. 

adj
  • good or attractive. 

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