talk one's head off 喋喋不休，说个不停

【例句】
I talked my head offto convince them.
我不停地劝说，竭力想说服他们。

I love my Aunt Lily, but she talks her head off whenever I go to visit her.
我爱我的莉莉阿姨，但每次我去看她，她总是喋喋不休。