Carlos Alberto de Nóbrega is a Brazilian comedian and host of the long-running comedy show A Praça É Nossa, where his hearty laugh became a signature part of the program. Clips of his risada circulated widely on Brazilian social media and messaging apps, turning into a standalone reaction sound detached from the original sketches. Because the laugh is so recognizable locally, it now works as shorthand for finding something extremely funny, and it remains popular in meme edits, soundboards and short-form videos across Portuguese-speaking communities.