thresh vs waggle

thresh

verb
  • To beat soundly, usually with some tool such as a stick or whip; to drub. 

  • To violently toss the limbs about. 

  • To separate the grain from the straw or husks (chaff) by mechanical beating, with a flail or machinery. 

waggle

verb
  • To reel, sway, or move from side to side; to move with a wagging motion; to waddle. 

  • To move (something) with short, quick motions; to wobble. 

noun
  • A wobbling motion. 

  • The preliminary swinging of the club head back and forth over the ball in the line of the proposed stroke. 

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