Place it right after the claim appears on screen, then show the speaker's reaction for the payoff. Follow it with awkward crickets to hold the beat, or put a shocking sting before it when the claim is especially wild.
About this sound
This one-second Tagalog voice clip delivers the line di naman totoo yan, meaning that's not true, in a quick, dismissive tone with no music or effects behind it. It feels teasing and knowing, like catching a friend mid-exaggeration and calling it out before they can finish. The phrase is everyday speech in the Philippines, now reused as a short reaction to claims that sound made up.