Place it at the end of an apology exchange, just before the other person reacts, so the refusal closes the scene. Follow it with Awkward Moment when the moment needs a payoff, or lead into it with Eh Eh Ehhhh when the apology itself is the joke.
About this sound
This is a short, roughly four-second Japanese voice line saying 'iya, iinda' — 'no, it's fine' — in a soft, resigned tone, as if brushing off an apology or an offer of help. It feels calm, slightly awkward and quietly funny, the kind of polite refusal that ends a back-and-forth without any fuss. It works as a gentle shutdown rather than a sharp comeback.