Place it right after the question on screen, then follow it with a Bruh Meme Sound for the disbelief and a Fail Sound Meme to close the scene, keeping the denial as the punchline before the reaction lands.
About this sound
This 2.8-second Portuguese voice clip repeats “não, não, lembro não,” meaning “no, no, I don’t remember, no,” in a quick, insistent voice that sounds evasive and a little cornered. The rapid repetition makes the denial feel playful rather than serious, like an instant excuse that is too fast and too certain to be believable, which gives listeners a light, amused jolt.