Place it immediately after the confusing line in your edit, then follow it with the awkward crickets sound to let the failed explanation hang. Use it as the closing beat of the scene rather than under dialogue or narration.
O tym dźwięku
This is a three-second voice clip delivering the phrase 'que mangüangua' as a baffled reaction to something nonsensical. It feels funny and dismissively bemused, like there is no serious answer worth giving. The line comes from Víctor Medina, the comedian known as Nanutria.