A serious conversation, usually between male friends, where life problems are discussed and sometimes resolved. A conversation about feelings, very similar to a heart-to-heart conversation, where one person takes the lead in offering advice and attempts to help the other person or people through their problems, sometimes resulting in an emotional breakthrough. A cheaper alternative to celebrity psychologist/t.v. host Dr. Phil McGraw.
Note: It is much easier for men to have a Dr. Phil session, rather than a heart-to-heart conversation, with each other because it is widely seen as being more masculine, and therefore more socially acceptable.
Tom: Did Larry tell you about all the problems he's having with his girlfriend?
Dave: Yeah, we totally had a Dr. Phil session the other night.