낮말은 새가 듣고 밤말은 쥐가 듣는다
nanmareun saega deutgo bammareun jwiga deunneunda · Birds hear what's said by day; mice hear what's said by night.
Someone is always listening, so watch what you say.
When to useWarning a friend who's gossiping a bit too loudly.
Think ofThe walls have ears.
Examples
여기서 팀장님 얘기는 그만해. 낮말은 새가 듣고 밤말은 쥐가 들어.
Stop talking about the manager here. Birds and mice are listening.