Put this clip directly after the on-screen mistake, then layer a long brain fart underneath the reaction shot for a second gag, and close the sequence with fart with reverb before returning to normal dialogue and the next scene.
关于此声音
This is a short 1.8-second fart effect run through a lowpass filter, so the blast sounds dull, heavy and tucked under a blanket. It gives a listener that goofy, sheepish brain-fart feeling, like a thought slipped out wrong in public and everyone heard the embarrassment land at once.