Buzina alta is Portuguese for a loud horn, and the phrase is widely used in Brazil for the sharp car horn sound shared in meme pages, WhatsApp groups and short video edits. Because the sound is instantly recognisable and lasts under two seconds, it travelled easily between soundboards and social clips, where creators reuse it as a quick punchline rather than a realistic traffic effect. Its staying power comes from that simplicity: anyone can understand the interruption, even without context, so it keeps working in new pranks, fails and reaction videos.