Peñarol, officially Club Atlético Peñarol, is one of Uruguay's most successful and widely supported football clubs, based in Montevideo and famous for its fierce rivalry with Nacional in the Uruguayan Clásico. Its black and yellow colours and passionate supporter culture have made its chants a familiar part of South American football online, where short fan clips circulate in match edits, TikTok videos and WhatsApp groups. Because the sound instantly identifies the club, creators keep using it to signal loyalty, celebrate victories and recreate a stadium atmosphere.