Put it directly after the garbled line in your edit, then follow it with Bruh for the next beat, or with Emotional Damage when the misunderstanding is the joke itself.
O tym dźwięku
This is a brief Portuguese voice clip, under two seconds long, in which a man says he did not understand what the person speaking to him just said. The flat, baffled delivery makes it feel funny and awkward, like a shrug in audio form. It comes from Pânico, the Brazilian television show.