The phrase is everyday Portuguese for describing someone as remarkably unfunny, which is why the clip needs no backstory to land with Portuguese-speaking viewers. As a standalone reaction sound, it fits the short-form habit of answering a weak joke with a single dismissive line rather than a longer argument. Its brevity makes it easy to reuse across edits, and because the judgement is broad rather than tied to one person or event, creators can apply it to friends, streamers, characters and awkward strangers alike.