The sound comes from La Casa featuring Argentine actor Diego Peretti, whose delivery of no me mientas became a reusable reaction clip online. The full version preserves the complete line, making it popular on soundboards for Spanish language memes and movie edits. Shared as a short audio, it spread among creators who need a clear accusation of lying without extra context. Its appeal lasts because the phrase is easy to recognise, the emotion is universal, and the clip fits confrontations, jokes, and dramatic reveals in many different videos.