Place it at the end of a failed attempt, after the action has played out, then follow it with a Vine Boom for a bigger reaction or a SpongeBob Fail for a second layer of mockery. Open with a Dramatic Dun Dun Dun to set up the flop, so the payoff lands as a joke rather than a cut.
关于此声音
This is an eight-second brass-style wah-wah-wah that slides downward in a sagging, overdone phrase, instantly signalling a flop. It feels funny and slightly mocking at once, turning a bad joke, a failed attempt or an embarrassing miss into a clear moment of disappointment. Listeners recognize the anticlimax immediately, even from just a second or two of the cue.