The sound comes from a 2012 Brazilian home video in which siblings Jefferson and Suellen perform the gospel song Para Nossa Alegria. Jefferson's sudden, high-energy delivery of the title line turned a family recording into a national catchphrase, spreading quickly on YouTube and television in Brazil. The clip was remixed, quoted and imitated for years, and the stretched shout survived as a standalone reaction sound. Outside Brazil it circulates mainly in meme edits, where viewers recognise the joyful scream even without knowing the original video.