Place it at the end of a whispered aside, just before the reaction shot, so the line lands as the punchline. For a longer exchange, follow it with You What as the confused reply, then escalate with Shut Up Mom when the muttering starts again.
O tym dźwięku
This is a short Hungarian voice line, lasting about a second and a half, in which Mucsi Zoltán sharply tells someone to stop muttering. It feels irritated, impatient and comically blunt, like a scolding delivered before the other person can finish. The line is performed by Hungarian actor Mucsi Zoltán.