prick up your ears
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prick up (one's) ears
To suddenly pay close attention to something. Be sure to prick up your ears if anything about the case is mentioned. I can't help but prick up my ears if I hear someone say my name—even if they aren't talking about me.
prick up your ears
If someone pricks up their ears, they start listening eagerly, because they suddenly hear an interesting sound or piece of information. Olivia pricked up her ears at the mention of James. Note: You can also say that someone's ears prick up. My ears pricked up when I heard her talk about food. Note: When animals such as dogs hear a sudden or unfamiliar noise, they prick up their ears; that is, their ears become more upright so that they can hear the sound better.
prick up your ears
1 (especially of a horse or dog) make the ears stand erect when on the alert. 2 (of a person) become suddenly attentive.ˌprick up your ˈears
,your ˈears prick up
start to listen carefully: ‘And the winner is ...’ He pricked up his ears. ‘... Michael Poole.’This expression refers to the way dogs, horses and other animals raise their ears when they listen with attention.