The phrase is written in casual Japanese as nanka shiran kedo erande mita, with shiran and the related tag wakarahen both pointing to not knowing. The existing note saana carries a similar dunno feeling, reinforcing its use as a shrug in audio form. It circulates on user soundboards as a very short reaction clip rather than a song, despite being filed under music. Its appeal online is its brevity and honesty, letting creators admit a choice was random without adding an explanation or a longer setup in any video.