Place it right after the failed moment in your edit, before any punchline, so the reaction closes the scene. Follow it with Emotional Damage for a bigger flop, or Sad Meow Song for a softer ending, and keep Bruh for a separate beat so the two reactions do not compete.
このサウンドについて
This is a brief Spanish voice clip, just over a second and a half long, in which a speaker delivers the phrase 'que tristeza', meaning 'how sad', in a flat, resigned tone. It feels mock-sympathetic and gently sarcastic rather than genuinely upset, like a shrug in audio form for a small disappointment, a failed plan or a joke that did not land.