Put this clip right on the reveal in your edit, follow it with the Vine Boom Sound Button for the payoff, then add the Dun Dun Dun Sound Button before a second twist or a cut to reactions.
Über diesen Sound
This is a 27-second soundboard clip shared under the name Mrbreast, built around a drawn-out vocal rumble suggested by its 'rrrr' description. It plays as deliberately absurd rather than subtle, giving listeners a silly, overlong build that feels funny because it keeps going well past the point a normal reaction would stop.