Place it just after the confusing statement in your edit, then follow it with the You What SpongeBob clip for a second double-take before cutting to the Law and Order Dun Dun sting to close the moment.
About this sound
George Karizaki delivers a sharp, incredulous 'Say what?!' in this 1.2-second clip, his voice rising with disbelief at something unexpected. It feels funny and startled, like a double-take caught in a single breath, perfect for a moment that makes no sense. The line comes from Kamen Rider Revice.