double up vs twirl

double up

verb
  • To bend, bend over; to fold; to stoop. 

  • To employ double the usual resources for a particular purpose. 

  • To double one's amount of chips by winning an all-in pot. 

  • To have a secondary use. 

  • To double the quantity, amount or duration of something 

  • To get the second out in a double play, typically referring to getting an out by beating a runner back to a base (often by throwing) after a fly ball has been caught 

twirl

verb
  • To twist round. 

  • To pitch. 

  • To rotate rapidly. 

  • To perform a twirl. 

noun
  • A little twist of some substance; a swirl. 

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

  • Any rotating movement; a spin. 

  • A prison guard. 

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