Put it directly after the snobbish remark in your edit, so the insult answers the boast directly, then follow it with Bruh for a flat reaction and Emotional Damage to stretch the joke. Keep it as the punchline of the scene, not buried under other reactions.
About this sound
This 2.9-second clip is Seu Madruga delivering the Portuguese insult 'cambada de enjoados' in a gruff, scolding voice, aimed at a group acting superior and full of themselves. It feels blunt, funny and satisfying, like a grumpy neighbour finally telling snobs exactly what he thinks of them. The line lands best as a quick put-down rather than a long rant.