Place it right after the fail, not before it, so the reaction closes the moment. Follow it with the Wrong Answer Game Show sting when the mistake was obvious, or put the Minecraft Oof before it when a death sets up the moment.
Über diesen Sound
Jacksepticeye shouts the phrase 'go f yourself' in a loud, fast burst lasting just under four seconds, his Irish accent giving the insult a sharp, punchy edge. It feels like comic rage: sudden frustration and defiance turned into a joke, the kind of outburst that makes a small fail feel dramatic. The line comes from the Irish gaming creator Sean McLoughlin's energetic Let's Play videos.