gup vs plain English

gup

noun
  • Gossip or rumor; nonsensical or silly talk; blather. 

  • An elected head of a gewog in Bhutan. 

plain English

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

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