Place it at the end of a failed attempt, after the mistake is visible and before the next scene starts, so the reaction closes the moment. Pair it after SpongeBob Fail for a bigger flop, or follow it with Anime Wow when the setback turns into surprise. A single placement keeps the gag clear.
Über diesen Sound
This clip is a brief, under-a-second vocal wail that stretches the word 'wahh' into a high, quavering cry, like someone giving up in the most dramatic way possible. It lands as comic disappointment rather than real sadness, turning a small failure into a tiny tragedy. The sound is simple and instantly readable, which makes the overreaction feel funnier each time it is heard.