babbling vs waffler

babbling

noun
  • Idle senseless talk; prattle. 

  • A confused murmur, as of a stream. 

  • a stage in child language acquisition, during which an infant appears to be experimenting with uttering sounds of language, but not yet producing any recognizable words 

  • sounds produced by infant during the babbling period 

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 babbling and waffler occurred in a corpus of books? (source: Google Ngram Viewer )