Place it near the end of a scene, just after the rambling moment peaks, then follow it with a goofy yell for a bigger reaction or a shocked sound when the joke needs a sudden stop.
关于此声音
This is a short, roughly two-second vocal sound built around a single stretched-out 'roooot', delivered in a low, drawn-out tone that hangs in the air just long enough to feel deliberately silly. It lands as playful and slightly absurd, the kind of noise that makes a plain reaction feel bigger without saying anything else, and it works best when the exaggeration itself is the joke.