Place this clip right after the failed attempt in your edit, then follow it with the SpongeBob Fail Sound Effect for the reaction, or precede it with the Classic Fart Sound Effect for a stronger setup that this one undercuts.
关于此声音
This is a two-second fart effect that putters in weak, uneven bursts, loses momentum midway and dies away instead of finishing strong. It feels awkward and defeated, turning a simple bodily noise into a clear signal of effort collapsing. It comes from a free sound library recording uploaded as a short fart clip.