口くちがうるさい

expression, i-adjective

rumormongering; gossipy

Describes a person who spreads rumors or talks about others behind their backs. Often used critically.

• 近きん所じょの人ひとは口くちがうるさくて、すぐ噂うわさを広ひろめる。

  The neighbors are gossipy and spread rumors right away.

• 彼かの女じょは口くちがうるさいから、秘ひ密みつは話はなさないほうがいい。

  She's a gossip, so it's better not to tell her secrets.

expression, i-adjective

nagging; faultfinding

Refers to someone who constantly criticizes or complains about small things. Often used for a person who is hard to please.

• 上じょう司しは口くちがうるさくて、いつも細こまかいミスを指し摘てきする。

  My boss is nagging and always points out small mistakes.

• あの先せん生せいは口くちがうるさいから、宿しゅく題だいを忘わすれると怒おこられる。

  That teacher is faultfinding, so if you forget your homework you'll get scolded.