Place it at the end of a fail sequence, right after the mistake is shown, then follow it with a Bruh reaction for a second beat of disbelief. For a bigger collapse, put Emotional Damage after that reaction to close the sequence on the lowest note.
About this sound
This short French voice clip has one speaker admitting, in plain French, that he is a big noob. The line lands in under two seconds, with a flat, self-deprecating delivery that makes the confession funnier than any excuse. It feels playful and awkward at once, like laughing at your own mistake instead of hiding it, and it works best when the fail is obvious to everyone listening.