Place it at the punchline point of a short edit, after the setup line and before a reaction beat. Follow it with goofy ahh sounds for a longer absurd stretch, or precede it with a meme sound to frame the moment as a joke from the start.
About this sound
A five-second clip of a voice chanting the nonsense phrase 'Pibi poubi pou manouli' in a playful, sing-song rhythm. The made-up words have no real meaning, which is exactly what makes it feel so silly and carefree, like a spontaneous cheer or a goofy spell being cast for no reason at all.