In complete confidence between the speaker and the listener, as of a forthcoming secret or rumor. Now, this is between you, me, and the lamppost, but I'm thinking about filing for divorce.Between you, me, and the lamppost, I hear that they're going to lay off half the staff by the end of the week.
phr. just between you and me. Between you, me, and the lamppost, things are going to get worse before they get better. It’s supposed to be a secret, but between you, me, and the bedpost, he quit his job.