glop vs piff

glop

noun
  • Any gooey substance. 

  • A gooey blob of some substance. 

verb
  • To apply (a liquid) thickly and messily. 

piff

noun
  • Piffle; nonsense; rubbish. 

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

adj
  • good or attractive. 

verb
  • To throw something vigorously. 

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