This audio is mainly known online as a Vietnamese reaction clip shared in meme posts, reposts and short-form video edits. It spreads because the phrasing is instantly recognizable to Vietnamese-speaking audiences and still readable as confusion even for viewers who do not know the language. Creators often use it the same way they use a bruh reaction or other disbelief sounds: to underline a bizarre reveal, a questionable decision, or a joke that makes everyone pause for a second.