drivel vs talk through one's hat

drivel

verb
  • To talk nonsense; to talk senselessly; to drool. 

  • To use up or to be used up. 

  • To move or travel slowly. 

  • To be weak or foolish; to dote. 

noun
  • Nonsense; senseless talk. 

talk through one's hat

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

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

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