The phrase at the centre of the clip is a common Mandarin slang exclamation used to express amazement, alarm or disbelief, roughly similar to an emphatic wow in English. Because the recording is so brief, it spread easily as a shareable reaction audio on soundboards and in short form video edits, where creators reuse short voice hits instead of recording their own reaction. Its appeal is timing rather than context, so it is now used far beyond any single scene for surprise reveals, gaming mistakes and awkward moments.