Place this clip at the end of your build-up, directly before the visual payoff, then follow that payoff with a bass drop for weight, or set up the whole sequence earlier with a few moments later before cutting back to Wonka's warning.
Über diesen Sound
A five-second voice clip of Willy Wonka calling out 'Hang on everybody, here it comes!' in an excited warning to his guests. It feels tense and gleeful at once, like a playful countdown before chaos. The line comes from Willy Wonka and the Chocolate Factory.