A sine tone that wobbles fast while its pitch slides down, like a door-stop spring being flicked. Good for bounces, pratfalls, jump-scares that are not scary, and anything that needs to sound slightly ridiculous.
sine, base pitch 420 Hz → 160 Hz over 0.6 s vibrato 22 Hz, depth ±18% shrinking over time soft clip (tanh) for a rubbery edge envelope: 3 ms attack, 550 ms decay