Place it immediately after the nonsense claim, then follow it with a flat nope to close the exchange, or cut straight to the next scene while the question still hangs in the air.
Über diesen Sound
This is a short German voice clip in which a speaker asks, 'Was laberscht du?', meaning what are you babbling about. It feels dismissive and funny, like catching someone mid-ramble and refusing to let the nonsense pass. The blunt question makes it a handy comeback when a claim sounds absurd.