Place it at the exact frame a plan collapses, then let the fail sound meme land a beat later for a double punch. In longer edits, follow it with the Bruh Meme Sound to underline the reaction, and keep it away from music beds so the gag stays isolated.
關於此聲音
This is a 0.4-second descending slide whistle, a cartoon glissando that slides sharply down in pitch in one quick swoop. It feels playful and deliberately clumsy, turning a small mishap into a comic letdown rather than a serious failure. The effect is associated with the Goofy short Goofy Gymnastics from 1949, where its falling pitch became a shorthand for cartoon pratfalls.