unbosom oneself to

unbosom (oneself) to (someone)

To share one's deepest or most intimate emotions, thoughts, or secrets with someone else, especially in a profuse or sudden manner. I had simply asked him how things had been, when suddenly he unbosomed himself to me about all the problems he and his wife had been experiencing lately. I apologize for unbosoming myself to you like that. I'd been holding on to that secret for a long time and just had to tell someone. I hadn't expected her to unbosom herself to me with a confession of love, but it made my heart soar to hear it.
See also: to, unbosom
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

unbosom oneself to someone

Fig. to reveal one's inner thoughts and secrets to someone. He unbosomed himself to his best friend. Todd unbosomed himself to almost everyone he met.
See also: to, unbosom
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
See also: