What is the origin of the idiom "talk one's ear off" and when to use it?

The phrase "talk one's ear off" likely emerged in the early 1900s from the irritation and frustration felt by listeners who are unable to get a word in due to someone speaking constantly. The idiom is used informally and often in a critical manner to describe an inconsiderate or self-absorbed speaker who fails to recognize how their relentless talking affects the listener.