Put it at the end of a setup where someone keeps asking the same question, then let Bruh land as the flat follow-up. For a bigger escalation, open with Oh My God Bro Oh Hell Nah before it, so the question, the disbelief and the blunt reply build in order.
Über diesen Sound
This is a roughly three-second spoken clip of a single voice delivering the line 'What the fuck do you want' in a sharp, impatient tone. It lands as rude, confrontational and funny at the same time, the kind of blunt interruption that cuts a conversation short. The delivery makes it feel like a door being slammed on a question that should never have been asked.