一锤定音

一锤定音:

Literally means:

set the tune with one beat of the gong

Actually means:

give the final word.

It originally means that in producing the copper gong with a hammer, an experienced craftsman sets the tune with the last beat of the hammer on the gong.

It figuratively means one gives the final word and makes the decision or that one thing is supposed to decide on other things.

原指用锤子打制铜锣时,由有经验的师傅敲最 后一锤决定锣的音色。

比喻凭某个人的一句话 把事情最后决定下来。也指由某件事来决定其 他的事。