Place it at the exact reveal moment, after the setup has made the trap clear, then follow it with the Game Show Buzzer to punctuate the failure and Emotional Damage Meme to underline the victim's defeat.
About this sound
This 16-second clip is a villain monologue in a deep, distorted demon voice, delivered slowly and triumphantly before breaking into a sinister laugh. It feels menacing, like a trap closing while the villain savours the win, but playful enough to stay funny. It comes from Dr. Devil, a user-made Audacity character voice shared as the final sample in a soundboard series.