Carlos Alberto de Nóbrega is a Brazilian comedian and television presenter best known as the host of SBT's long-running comedy show A Praça é Nossa, where his distinctive laugh became part of the show itself. Clips of that laugh were later cut out and shared on WhatsApp, YouTube and TikTok, where Brazilian creators began using it as a ready-made reaction to jokes, fails and ironic moments. It endures because it is instantly recognisable, warm rather than mocking, and it carries the feeling of an old television studio audience in a single sound.