The sound comes from Dr. Rey, the Brazilian plastic surgeon known for his flamboyant television appearances, during a segment on Pânico na TV, the long-running Brazilian comedy show. In the clip he laughs in his consulting room and repeatedly calls for Daniela, a moment that Brazilian viewers turned into a shorthand for theatrical, self-amused laughter. Shared widely through soundboards and short-form video, it travelled beyond its original broadcast as a reaction sound, and it remains popular because the laugh is instantly recognisable even without understanding the Portuguese dialogue.