gup vs jibber-jabber

gup

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

  • An elected head of a gewog in Bhutan. 

jibber-jabber

noun
  • Excessive or meaningless talk. 

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