Place it at the end of a setup, just before the visual reveal, then follow it with a dramatic sting for a grand entrance or a fail sound when the reveal flops, keeping it as the cue that something is about to happen.
About this sound
The clip lasts just over four seconds and holds three evenly spaced, low, hollow 'tam' hits, like knocks on a wooden door or a drum rim, each fading quickly after a soft attack. It feels playful and old-fashioned, building a small pause of expectation before something silly appears. It circulates as a fan-labelled clip linked to Mel Brooks' 1974 horror-comedy Young Frankenstein.