piff vs yuck

piff

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

verb
  • To throw something vigorously. 

adj
  • good or attractive. 

noun
  • Piffle; nonsense; rubbish. 

yuck

intj
  • Uttered to indicate disgust usually toward an objectionable taste or odour. 

noun
  • The sound made by a whole-hearted laugh. 

  • Something disgusting. 

verb
  • To say "yuck"; to express disgust. 

  • To vomit or gag; 

  • fuck. 

  • To laugh or joke. 

  • To yank or grab. 

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