Use it as the first reaction beat after a mishap, then cut to the aftermath while a follow-up sound takes over. Pair it with a record scratch before it for a build-up, or a sigh afterwards to show the defeat sinking in.
About this sound
This is a very brief Korean voice clip built around a single profanity-laced outburst, delivered in one sharp, irritated burst lasting under two seconds. It feels blunt, annoyed and stunned at once, like the sound of someone reacting the instant a plan falls apart. That sudden, rough edge makes it work as a quick burst of disbelief for a mistake or unlucky moment.