bunkum vs plain English

bunkum

noun
  • Bombastic political posturing or oratorical display designed only for show or public applause. 

  • Senseless talk; nonsense; a piece of nonsense. 

plain English

noun
  • English that does not use any jargon or technical / scientific terminology. 

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