Buzina is the Portuguese word for a vehicle horn, and clips like this one circulate widely on Brazilian soundboards and short-form video platforms where creators need a realistic honk on demand. The 4i20 label appears to be a user-generated file name rather than a known commercial product or character, so its popularity comes from the sound itself, not a famous scene. Because a horn is instantly understood across languages, editors keep reusing it for pranks, traffic jokes, and reaction edits, where a single blast can replace a whole setup.