hold on vs jump the gun

hold on

verb
  • Wait a short while. 

  • To remain loyal. 

  • To grasp or grip firmly. 

  • To persist. 

  • To keep; to store something for someone. 

jump the gun

verb
  • To act or begin too soon or without due caution. 

  • To trade securities based on information that is not yet public; to trade on inside information. 

  • To begin a race too soon, before the starting gun goes off. 

How often have the words hold on and jump the gun occurred in a corpus of books? (source: Google Ngram Viewer )