A term used to describe a moment of sexual tension between two homosexual individuals. Usually denotes that the attraction was not acted on.
Female: "Alison totally had a mo-mo with that cute chick at the gay bar."
Male: "Mark and I had a mo-mo in the locker room"
Male: "Mark and I had a mo-mo in the locker room"
by Katethegrape April 23, 2011