The exact original video behind this clip is not clearly documented, but the phrase itself is everyday Brazilian Portuguese for it is a lie, and the stretched pronunciation gives it its meme character. Shared as a short reaction sound on soundboards and social videos, it works because the meaning is instantly clear even to listeners who recognise only the tone. Creators keep returning to it for lie reveals, bluffs and tall tales, where a single second of disbelief says more than a long explanation.