jump the gun

意味

to act too soon, before the right moment

適切な時機を待たずに早まって行動する.

例文

1. 1We jumped the gun by booking the hotel before our leave was approved.
2. 2Let's not jump the gun; wait until the test results are back.
3. 3Tom jumped the gun and told everyone he'd got the job before the contract arrived.
4. 4Isn't it jumping the gun to buy baby clothes before the first scan?
5. 5The shop jumped the gun with its Christmas decorations; they were up in early September.

文法

変化するのは jump だけ：jumped、jumping。the gun は単数のまま、the を付ける