Place it immediately after the gross reveal in your edit, then follow it with an awkward moment sting to let the joke settle before the next scene. If the reaction needs more weight, add a disappointed reaction sound before it, so the callout lands as the final word.
关于此声音
This is a one-second voice clip of Hololive VTuber Inugami Korone saying 'honto kimoi ne omae' in Japanese, a blunt line that translates as calling the listener really gross. Her bright, teasing delivery makes the insult feel playful rather than harsh, like a joke between friends. It comes from a stream moment where she directed the line at her viewers by accident.