ears are flapping(redirected from his, her, etc. ears are flappinghis, her, etc. ears are flapping)
(someone's) ears are flapping
Someone is listening, or trying to listen, to the details of a private conversation. Let's finish this conversation in the meeting room in case people's ears are flapping nearby.
ears are flapping
Said when one suspects that a private conversation is being listened to. If ears are flapping now, we should postpone this discussion until a later time, don't you think?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
his, her, etc. ˈears are flapping(British English, informal) a person is trying to listen to somebody else’s conversation: I think you’d better tell me later when we’re alone — ears are flapping here.
Flap here means to move quickly backwards and forwards.
Farlex Partner Idioms Dictionary © Farlex 2017