walls have ears

Значение

used to warn that someone may be listening

Осторожно, могут подслушивать.

Примеры

1. 1Let's talk about the pay rise outside; walls have ears in this office.
2. 2Keep your voice down when you mention the plan: walls have ears.
3. 3Don't discuss the surprise in the kitchen, because walls have ears and Mum is next door.
4. 4We whispered in the café because walls have ears, and our boss often has lunch there.
5. 5Why are you whispering? Do you really think walls have ears in your own flat?

Грамматика

Устойчивая поговорка, целое предложение: ничего не меняется. Часто стоит после because или предупреждения.