Place this clip right after the exaggerated claim in your edit, then follow it with the no no wait wait button if the argument keeps escalating, or a damn meme sound button for the final reaction shot before cutting away.
このサウンドについて
A short Portuguese voice clip of streamer Smzinho saying 'Não é assim também não' — roughly 'it's not like that either' — in an exasperated tone over about six seconds. It feels funny and mildly fed up, like a protest that things are being exaggerated. The line comes from Smzinho raging while playing Tekken 7.