Place it at the end of a confusing setup, after the reveal, then follow it with the Bruh Sound Effect for a second reaction, or open with Goofy Ahh Sounds and let this clip answer the strange moment.
关于此声音
This five-second voice clip is one person saying 'erm what the sigma' in a slow, hesitant voice, stretching the awkward pause instead of rushing the line. It feels funny and lightly sarcastic, like mock disbelief at something that makes no sense. The phrase grew out of Gen Alpha brainrot humour, where sigma slang was turned from a confident boast into a confused question in short-form edits.