waffler vs willow in the wind

waffler

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

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

  • A waffle iron. 

willow in the wind

noun
  • One whose views are easily and regularly changed by the persuasion or influence of others. 

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