Place it immediately after the mistake in your edit, then follow it with the Bruh sound effect for a second reaction, or lead in with a game show buzzer before the reveal to set up the failure.
關於此聲音
This under-a-second German voice clip delivers the line 'Russia smells' in a blunt, matter-of-fact tone, with no music or extra effects behind the words. The deadpan delivery makes the insult feel dry, cheeky and unexpectedly funny, like a casual aside rather than a shout. It works because the statement is so direct and so out of place in an unrelated moment.