Put it at the end of a stalled exchange, then follow it with Ceeday Huh to underline the confusion, or open with No No Wait Wait before it so the interruption lands as the final word in the scene.
Over dit geluid
Tha is a brief reaction clip built around a single clipped vocal syllable, delivered flat and cut off before it can turn into a full word. The abruptness gives it a dry, deadpan feeling, like a reply that stops halfway through and leaves the other person waiting for the rest.