chew (one's) ear(s) off

1. To talk incessantly or excessively, especially such that might cause one to become exhausted or bored. I love my Aunt Lily, but she'll chew your ears off if you let her! A: "How was your date?" B: "Eh, not great. She just chewed my ear off about politics all night." Don't start a conversation with Stu if you want to leave on time tonight—that guy sure can chew your ear off.

2. To reprimand one harshly. Oh man, did Mr. Smith chew my ears off when he found out I still hadn't finished the project he gave me an extension on! Ooh, Mom is gonna chew your ear off when she finds out you're failing math. The boss is totally going to chew our ears off if he hears that we lost that big client.