Place it immediately after the failed moment in your edit, as the first reaction before any other sound. Follow it with Sad Violin to stretch the joke, or put Wrong Answer Game Show just before it when a quiz guess goes wrong.
Over dit geluid
This is a very short spoken clip of someone saying “oh well” in a flat, resigned tone, lasting less than a second. It lands as a dry, lightly funny shrug, the sound of giving up on a small disappointment without making a fuss. It works best as a quick verbal reaction to a minor setback, delivered with weary acceptance rather than drama.