frontflip vs twirl

frontflip

noun
  • A floor movement, consisting of rotating one's body in the air 360 degrees in the forward direction. 

twirl

noun
  • A movement where a person spins round elegantly; a pirouette. 

  • A little twist of some substance; a swirl. 

  • Any rotating movement; a spin. 

  • A prison guard. 

verb
  • To twist round. 

  • To pitch. 

  • To rotate rapidly. 

  • To perform a twirl. 

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