blabber vs waffler

blabber

noun
  • A person who blabs; a tattler; a telltale. 

verb
  • To blather; to talk foolishly or incoherently. 

  • To blab; to reveal a secret. 

waffler

noun
  • One who waffles or rambles; a vague, unfocused speaker or writer. 

  • A waffle iron. 

  • One who waffles, or changes sides or positions frequently. 

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