chin
noun
the lower extremity of the face, below the mouth.
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He had gotten Polly in a corner and was chinning the ear off of her.
From Biltmore Oswald The Diary of a Hapless Recruit by Dick Dorgan