See also EARLY, WAITING.
jump the gun
tr. to start too soon; to start before the starting signal.Don't jump the gun again. Wait till I tell you.The secretary jumped the gun and gave out the letters too soon.
one jump ahead of someone or something
n. in advance of someone or something; a step ahead of someone or something.I try to be one jump ahead of the problems.You have to keep one jump ahead of the boss in order to succeed.