talk ear off
talk (one's) ear(s) off
To talk so much as to cause someone to be exhausted or bored. I love my Aunt Lily, but she'll talk your ear off if you let her! A: "How was your date?" B: "Eh, not great. She just talked my ears off about politics all night."
talk someone's ear off
Fig. to talk to someone endlessly; to bore someone with too much talk. My aunt always talks my ear off when she comes to visit. Stay away from Mr. Jones. He will talk your ear off if he gets a chance.