Leave here quickly and directly; don't linger on your way out the door. Used sarcastically to express one's desire to see someone leave. I couldn't be happier that you're leaving the firm, you were a nuisance here anyway. Don't let the door hit you on the way out!See also: door, hit, let, on, out, waySeeDLTDHYOTWOSeeDLTDHYOTWO