full throttle vs on the double

full throttle

noun

  • A maximum setting on an engine or motor control. 

  • A maximum level of speed, effort, or risk. 

adv

  • All out; at maximum speed, effort, or risk. 

on the double

prep

  • Rapidly or immediately. 

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