Ulala is a playful version of ooh la la, an expression long used to show attraction, surprise or admiration. Online, this short man saying it has been shared as a standalone reaction clip for edits and meme videos. Its brevity makes it easy to drop over a reveal or a freeze frame without covering dialogue. Creators reuse it because the meaning is understood instantly across languages, and the exaggerated delivery signals a joke rather than a serious comment, which keeps it popular for light reaction edits.