ears are flapping

Meaning

1. sb's ears are flapping

   a person is trying to listen to sb else's conversation

From the same entry

• be all ears
• be out on your ear
• be up to your ears in
• comes to ears
• ears are burning
• go in one ear and out the other
• have coming out of your ears
• have ear
• keep your ear to the ground
• play by ear
• play it by ear
• shut your ears to