Place it immediately after the mistake is revealed in your edit, then follow it with the Bruh Meme Sound Button for a flat reaction, or use a Fail Sound Meme Button just before it when the error needs a lead-in.
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A 7.6-second Portuguese voice clip built around the shouted word Desonra, followed by the same disgrace being wished on the listener's cow. The delivery turns a small insult into a full dramatic accusation. It feels funny and mock-outraged, like an over-the-top public shaming meant to make everyone else laugh at the person who messed up.