Place it after the rambling setup in an edit, then follow it with the Fahhh Meme Sound to extend the same reaction, and keep the second vocal as the closer so the sequence builds toward a bigger payoff.
Over dit geluid
The clip is a single drawn-out vocal sound built around a stretched 'faa' that runs for about eleven seconds, with the voice holding the sound far longer than a normal spoken word. It feels deliberately overdone and awkwardly funny, the kind of stretched delivery that makes a small reaction feel bigger than it is.