Place this clip at the end of a counting sequence in your edit, right after the mistake becomes clear. Follow it with a shocked sound for the reaction shot, then close the sequence with an oh no no no laugh for the group response.
About this sound
A roughly three-second spoken clip delivering the counting line '1 2 patate poil, maudit cave' in French, built from a childish rhyme that snaps into a mild insult. It feels gleefully absurd and teasing, like a playground comeback that leaves the target baffled rather than offended. The clip comes from Francois Perusse, the Quebecois humorist.