This sound is used online as a mate drinking effect, referring to the traditional yerba mate infusion commonly associated with countries such as Argentina and Uruguay. Short clips like this spread through meme edits, regional humor posts, and reaction videos because the noise is immediately recognizable to many Spanish-speaking viewers. Its appeal comes from how fast and specific it is: in under a second, it signals a shared habit, a social ritual, or a very particular kind of deadpan punchline.