Place it as the closing beat of a short blame scene, after a sound that sets up the accusation, then follow it with a laugh. The Bruh Soundboard Button works before it to sell the disbelief, while the Baby Laughing Meme Sound Button after it turns the denial into a shared joke.
About this sound
This is a short spoken Portuguese clip, just under two seconds long, in which a voice delivers the line 'Fui eu não' — 'it wasn't me' — as a brisk denial. It feels defensive and playful at once, like a caught-out excuse said with a shrug, and it lands as funny because the denial is so immediate and absolute.