Prick up one's ears
Meaning
To suddenly pay close attention, often with a sense of alertness or curiosity, because something interesting or surprising has been said or heard.
Origin
Imagine a horse in a field, ears flopped, lazily grazing. Suddenly, a distant sound—the snap of a twig, the bay of a hound—catches its attention. In an instant, those ears whip forward, standing rigid, pointed like sentinels, perfectly funneling the sound. This vivid, physical act, known as "pricking up the ears," was observed and understood for centuries, especially in hunting and rural life. By the 16th century, this animalistic image became a powerful metaphor for humans: when you "prick up your ears," you're not just listening, you're becoming as alert and focused as that horse, seizing every fragment of sound, driven by curiosity or surprise.
Examples
- The dog would always prick up its ears whenever it heard the distinct jingle of keys at the front door.
- I pricked up my ears when I overheard them discussing the new project, curious about the details of the changes.