floor it vs hotfoot

floor it

verb
  • To move (run, ride etc.) at full speed. 

  • To depress the accelerator to the maximum extent. 

hotfoot

verb
  • To run (a distance). 

adv
  • Hastily; without delay. 

noun
  • The prank of secretly inserting a match between the sole and upper of a victim's shoe and then lighting it. 

adj
  • Moving with haste or zeal. 

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