piff vs wibble

piff

noun
  • Piffle; nonsense; rubbish. 

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

adj
  • good or attractive. 

verb
  • To throw something vigorously. 

wibble

noun
  • Meaningless or content-free chatter in a discussion; drivel, babble. 

  • Used as the name of a metasyntactic variable. 

verb
  • To make meaningless comments. 

  • To wobble. 

  • To be overwhelmed by emotion and take on a childish expression with a quivering lips and chin. 

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