The chant comes from Full Metal Jacket, Stanley Kubrick's 1987 film about United States Marines in training and in Vietnam, in which Gunnery Sergeant Hartman, played by R. Lee Ermey, drills new recruits with relentless insults and cadences. In the Italian dub, his marching song becomes the Babbo e tua mamma routine, with the sergeant calling out each crude line for the platoon to repeat. Fans have clipped the exchange for memes and edits because Hartman's delivery is so distinctive, and the call-and-response format makes it easy to drop into parodies of discipline, teamwork and boot camp.