Place it at the end of a long talking segment, after the rambling peaks, then follow it with Oh My God Wow as the crowd reacts. If the speaker tries to start again, cut to No No Wait Wait before letting the scene move on.
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This is a short spoken Portuguese clip of a voice saying Cale a boca, meaning shut up, delivered bluntly in just over a second. The direct delivery makes it feel abrupt and dismissive, with a comic edge that lands when the chatter has gone too far.