打开话匣子

打开话匣子

Literally means:

turn on radio

Actually means:

话匣子 referred to a gramophone or radio in the old times. Once a radio is turned on, you will hear people talking continuously.

The phrase figuratively means talking without stopping from the very beginning. It often shows that once a talkative person starts talking, he or she will not stop.

话匣子，旧时指留声机或收音机。只要打开收音机，里面就开始并不断地讲话。

比喻一开始说话就停不下来。多表示爱说话的人只要开口说话，不会停止。