fishtail vs teeter

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. 

teeter

verb
  • To tilt back and forth on an edge. 

  • To be close to becoming a typically negative situation. 

  • To be indecisive. 

noun
  • A teeter-totter or seesaw. 

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