壁かべに耳みみあり

expression

walls have ears

Proverb warning that secrets may be overheard; often used as a standalone caution. The fuller form is 壁に耳あり障子に目あり.

See also: 壁に耳あり障子に目あり

• 壁かべに耳みみありだから、ここでは内ない緒しょ話ばなしはやめておこう。

  Walls have ears, so let's not talk about secrets here.

• 「壁かべに耳みみあり」って言いうだろ。気きをつけたほうがいいよ。

  You know the saying 'walls have ears.' You'd better be careful.