Feira do Lulinha circulates online as a short Portuguese-language meme clip built around a market vendor's fruit call, with pumpkin, watermelon and mango among the items listeners recognise. Its appeal comes less from a single famous source than from its instantly recognisable street-market sound, which Brazilian creators reuse for shopping, food and everyday chaos. Because the clip is under five seconds, it works as a quick punchline, a scene-setter or a reaction sound, and that flexibility has kept it in rotation in edits, shorts and soundboard collections.