开金口

开金口

Literally means:

open your golden mouth

Actually means:

speak your valuable words

金口, a respectful word for what the addressee says. It also figuratively describes the value of one's words.

This phrase means that it is rare for one to speak or is used in a respectful way to describe one's speech. It also figuratively means that one's words carry weight so that listeners dare not disobey.

金口，敬称别人说的话，也比喻言语珍贵。

开金口，指好不容易才开口说话，或敬称别人说话。也比喻说的话很有分量，别人不敢不听。