The exact origin of this mercadinho xexelento clip is unclear from the upload alone, so it is best treated as a piece of Brazilian internet humor rather than a quote from a known show or film. The joke lives in the deliberate misspelling of excelente as xexelento, a common playful twist in memes. Online creators use the short phrase to hype up small markets, corner stores and grocery finds with ironic pride, keeping it alive as a quick reaction sound for shopping and store memes.