to perk (up) one's ears
[perk|prick] {one's} ears up
to perk (up) one's ears
01
to hear something interesting and start to listen to it carefully
تعبير اصطلاحي
غير رسمي
أمثلة
When he heard the word bonus, he pricked up his ears.
to hear something interesting and start to listen to it carefully