waffler vs yammer

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. 

yammer

noun
  • One who yammers. 

  • A loud noise. 

  • The act or noise of yammering. 

verb
  • To complain peevishly. 

  • To repeat on and on, usually loudly or in complaint. 

  • To make an outcry; to clamor. 

  • To talk loudly and persistently. 

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