gup vs prattle

gup

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

  • An elected head of a gewog in Bhutan. 

prattle

noun
  • Silly, childish talk; babble. 

verb
  • To speak incessantly and in an inconsequential or childish manner; to babble. 

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