Place it at the peak of an embarrassing reveal, after the Awkward Moment Sound Effect has set the scene and before the Eh Eh Ehhhh Meme stretches the joke out for a second beat.
关于此声音
This is a roughly two-second anime-style vocal burst, a long ahh that breaks into a startled yelp. It feels funny, flustered and deliberately exaggerated, turning a small slip or awkward reveal into sudden panic. That energy makes a plain reaction land as chaotic embarrassment instead of a quiet shrug.