Place it at the exact beat of the reveal, after the setup line ends. Follow it with the fail sound meme for a botched scheme, or put a bass drop sound button underneath the final frame to close the scene.
Über diesen Sound
A 3.5-second burst of high, maniacal laughter performed in the voice of the Joker, with no words, just escalating cackles. It feels gleefully unhinged and mocking, turning a small win into something sinister and funny at once. The laugh keeps rising until it sounds completely out of control.