The sound comes from JoJo's Bizarre Adventure: Golden Wind, the anime adaptation that aired from 2018 to 2019. Vinegar Doppio, the younger separate personality of the boss Diavolo, believes he receives secret calls and hears a turururu ring in his head, often holding random objects to his ear as phones. Clips of those scenes spread among anime fans online and became a recognisable ringtone and meme cue. It remains popular because the noise alone signals the joke without needing the full scene or any dialogue.