I'm not sure if we have a tag for it, but なんかのアカシャ is a reference to this old video: https://www.nicovideo.jp/watch/sm7598520

Blue_Stuff said in comment #2591448:

I'm not sure if we have a tag for it, but なんかのアカシャ is a reference to this old video: https://www.nicovideo.jp/watch/sm7598520

That old video seems to be based on the even older Nanka no sanagi, I made a tag some time ago but never got to making a wiki for it

(though it could be changed to nanka no akasha, it might be the origin of the one specific variation of this video i saw a ton)