fishtail vs waggle

fishtail

verb
  • To move with the tail swinging from side to side in this way. 

  • To swing the back of a vehicle (originally an aircraft) from side to side. 

  • To cause the back of (a vehicle) to swing from side to side. 

noun
  • The skidding of the back of a vehicle from side to side. 

  • A kind of chisel with a flared blade. 

  • The tail of a fish, or an object resembling this. 

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 fishtail and waggle occurred in a corpus of books? (source: Google Ngram Viewer )