put all (one's) cards on the table

To reveal everything that one has kept hidden, such as one's motives, intentions, opinion, etc.; to be very candid. A reference to a player in a card game revealing the cards that they were holding. "Of" can be used between "all" and the pronoun. You deserve honesty, so I'm going to put all of my cards on the table—I can't offer you this job, but we may have another position that you'd be good for. Brian says he starts every relationship by putting all his cards on the table—that way there's no secrets.