Use it as the first reaction to the confusing reveal, then follow with the Bruh sound before the Oh My God Bro Oh Hell Nah sound closes the whole sequence.
About this sound
A 17-second loud meme voice clip of a speaker blurting out the baffled question in its title at full volume, with a raw, unfiltered delivery that sounds caught in the moment. It feels funny and confrontational, like catching something so strange you cannot stay quiet about it, and it lands best as a sudden, over-the-top reaction to a confusing sight.