informal to start to listen carefully to what someone is saying, often because you think you may find out something interesting.
Eve pricked her ears up when she heard her name being mentioned.
(redirected from prick ears up)
prick (one's) ears up
To suddenly pay close attention to something. Be sure to prick your ears up if anything about the case is mentioned.I can't help but prick my ears up if I hear someone say my name—even if they aren't talking about me.