Place it as the immediate reply after the questionable claim in your timeline, before any commentary resumes. For a double reaction, follow it with the You What SpongeBob Sound to keep the exchange moving, then return to the main clip without adding another effect on top.
關於此聲音
This is a very short voice clip of Arnold Jackson asking, “Whatchu talkin' 'bout, Willis?” in a sharp, questioning tone. It gives a listener instant disbelief mixed with playful suspicion, like a kid calling out an adult who just said something absurd. The line comes from the sitcom Diff'rent Strokes, where Gary Coleman played Arnold.