Place it after the reveal in a comedy edit, then follow it with the Sad Violin Meme Sound Effect for a sad punchline, or lead into it with the Nelson Ha Ha Sound Effect when a taunt needs a bigger finish.
关于此声音
This is a long, wavering vocal clip lasting almost 39 seconds, stretching the single syllable 'loou' into a wobbly, drawn-out sound with no words. It feels playful and teasing, giving a reaction a light comic lift that signals amusement, disbelief or mock drama. Its stretched form lets the joke hang in the air instead of passing in a flash.