The point in a House M.D. episode where Dr. Gregory House solves the puzzle and finds the
one missing piece that saves the patient's life. It usually occurs the minute a patient is about to die, resulting in House bursting into the room, making an incision, pull out a live
animal (sometimes), and curing the patient of their affliction.
This was named for the Pilot episode and episode 314 (Insensitive) in which a ham
sandwich provoked the moment.
House Fan 1: "Why does he keep looking at the
hair behind her ear?"
House Fan 2: "Oh, this is it! The
ham sandwich moment!"
House Fan 1: "Look at that, the
cheap hair color solution she used had chemicals that mimicked hormones, which caused her to be sick."