Place it at the exact point of the reply in your edit, not over background action. Put a short build-up line from another speaker before it, then follow it with a reaction sound or a cut to the next scene so the line stays the focus of that beat.
O tym dźwięku
This is a 4.4-second voice clip of a speaker delivering the short Arabic phrase 'انا شعيوط' as a standalone line. It is brief enough to work as a complete reply on its own, with no other dialogue around it. The delivery gives it a blunt, playful feeling, like dropping a confident one-liner into a conversation and letting it sit there without explanation.