水を差す

水を差す (みずをさす) means to spoil the mood.

Kana

みずをさす

Meaning

to spoil the mood

Japanese Example

せっかくの楽しい話に水を差さないで。

Translation

Do not spoil the mood when we are finally having a good conversation.

Related idioms

みみにはさむ

to happen to hear something

目から鱗が落ちる

めからうろこがおちる

to have one’s eyes opened

くちがおもい

to be reserved and not talkative

to have trouble dealing with something