To jump the gun

Also found in: Idioms.
Related to To jump the gun: Jump the Shark, Idioms
References in periodicals archive ?
Samsung has been known to jump the gun on Apple but it looks like the Galaxy Fold needs more work.
DAVID Cameron was warned yesterday not to jump the gun on new powers to Holyrood.
The 212 rapper, who recently got into a Twitter row with Lily Allen when she said her husband looked like a thumb, said: "I don't like to jump the gun but I definitely am interested in doing some sort of jazz at some point.
"People want us to jump the gun and do something instantaneous but these things have to be done properly."
Brown said: "I don't want to jump the gun as we've all still got a long way to go but if George continues in the form he's in, the fans will make sure he gets a new contract, it's as simple as that."
How the article is worded seems mean spirited and a bit hateful to jump the gun or in this case to jump the string to tell readers to bad mouth a bow manufacturers string without first giving them an opportunity to make it right or addressing it in a more direct manner.
Neil Willis, of Cramlington, wrote: "To jump the gun means to start something before the proper time, the origin of this phrase appears to relate to athletes starting a race before the starting gun has gone off."
Like similar accreditation for the door security industry, its introduction is being phased in, so he decided to jump the gun and become one of the first in the north west to sign up.
"The housing market is under such stress that some mortgage lenders felt it necessary to jump the gun and take action by reducing rates before the decision was made."