the sex act, buryin' the bone, balls-to-the-wall deep within the vaginal cavity. The act of sexual intercourse. My brother spends his weekends cruising the bars around town in hopes of doing the horizontal mambo with someone. References "Horizontal tango" may be a play on the euphemism for sex, "horizontal mambo", hence the "name designed to make you blush." The common phrase, "Tango is the vertical expression of a horizontal desire", succinctly expresses this notion.