Put it on the exact frame where the joke breaks, then cut straight to the reaction shot. Follow it with Funny Ha Ha Laugh Sound for a release, or end the clip with Directed by Robert B. Weide to close it. Keep Nico Nico Nii Sound for a chant swap earlier in the same edit.
About this sound
The clip is one voice repeating the same short phrase over and over, keeping a flat, insistent beat across almost ten seconds. Listening to it feels strange and confrontational, like a joke that has gone deliberately wrong and left everyone unsure whether to laugh. That uneasy, over-the-top quality is why editors reach for it when they want a scene to collapse into nonsense.