The citofono is a fixture of daily life across Italy, where nearly every apartment block uses an electric intercom buzzer to announce visitors, and its aggressive drone has become recognisable far beyond its home country. Online, the sound circulates on user-generated soundboards, where it gets shared as a universal stand-in for any doorbell moment. Italian meme pages use it to stage fake deliveries and prank calls, while international creators grab it whenever they need a European-flavoured doorbell that feels different from the classic American ding-dong. Its charm is pure familiarity: everyone knows what a buzzing intercom means.