read someone's mind

read (one's) mind

To know what one is thinking. You read my mind—that's exactly where I want to go to dinner! I'm sorry, but I can't read your mind. You need to tell me these things.See also: mind, read

read someone's mind

Discern what someone is thinking or feeling, as in He often finished her sentences for her, almost as though he could read her mind. [Late 1800s] See also: mind, read