Carlos Alberto de Nóbrega has hosted A Praça é Nossa on SBT since 1987, sitting on the same park bench while comedians join him for sketches. His hearty laugh became one of the show's signatures and a familiar sound in Brazilian homes for decades. Online, clips of that laugh were cut, boosted and shared on soundboards as a reaction meme, with the nuke nickname pointing to the overblown edit. It stays popular because the laugh is instantly recognisable and works even without the original sketch.