moron vs piff

moron

noun

  • A stupid person; an idiot; a fool. 

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 moron and piff occurred in a corpus of books? (source: Google Ngram Viewer )