speak your mind
speak (one's) mind
To voice one's thoughts plainly or bluntly. Can I just speak my mind, even though you probably won't like what I have to say?
speak your mindexpress your feelings or opinions frankly.
1982 Marion Z. Bradley The Mists of Avalon Someday she would be too weary or too unguarded to care, and she would speak her mind to the priest.