burble vs talk through one's hat

burble

verb
  • To trouble or confuse. 

  • To babble; to speak in an excited rush. 

  • To bubble; to gurgle. 

noun
  • The turbulent boundary layer about a moving streamlined body. 

  • A bubbling, gurgling sound, as of a creek. 

  • Trouble; disorder. 

  • A gush of rapid speech. 

talk through one's hat

verb
  • To assert something as true or valid; to bluff. 

  • To speak lacking expertise, authority, or knowledge; to invent or fabricate facts. 

How often have the words burble and talk through one's hat occurred in a corpus of books? (source: Google Ngram Viewer )