Place Sudden Suspense just before the reveal to build tension, then let this gasp land on the reveal itself, and follow it with Oh My God Wow for the reaction. That order works in short reaction edits and meme compilations where one surprise needs a clear payoff.
About this sound
This is a roughly one-second theatrical gasp from Sr. Pelo, a sharp, rising intake of breath that lands with cartoonish disbelief. It feels funny and startling at once, turning a quiet reveal into an instant punchline. It comes from the Mexican animator and YouTuber known for fast-paced, darkly comic animated videos and expressive voice acting.