口くち叩たたき

noun

talking a lot; talkative person

Often used in a slightly critical or teasing way for someone who chatters or talks too much. Can refer to the act of talking a lot or to a person who does so.

• 彼かれは口くち叩たたきで、いつも誰だれかと話はなしている。

  He's a talkative person and is always chatting with someone.

• 会かい議ぎ中ちゅうに口くち叩たたきが過すぎると注ちゅう意いされる。

  If you talk too much during a meeting, you'll get told off.