Put this clip at the very end of a failed attempt, after It Was At This Moment He Knew sets up the mistake and before Fail Sound Meme underlines the result, so the reaction closes the sequence rather than opening it.
About this sound
This is a single-word bruh spoken flat and dry in under a second, with no build-up and no extra emphasis. It lands as a verbal eye-roll, turning a bad call, a failed attempt or an awkward pause into instant disbelief and secondhand embarrassment. Listeners hear it as a blunt, exhausted 'really?' that needs no explanation.