- frank; sincere: We had a heart-to-heart talk about his poor attendance.
- Informal. a frank talk, especially between two persons.
- (esp of a conversation or discussion) concerned with personal problems or intimate feelings
- an intimate conversation or discussion
Candidly, sincerely, as in We need to talk heart to heart about her coming marriage. This expression is nearly always applied to a conversation of some kind. [Mid-1900s]