The 'Shikairo Days Dance' (also known as the 'Shikanoko Nokonoko Koshitantan' dance) is a viral internet phenomenon originating from the opening theme of the anime series My Deer Friend Nokotan. Even before the show's 2024 premiere, a teaser clip featuring characters performing a rhythmic, ear-wiggling dance to a repetitive, earworm melody took social media by storm. It quickly became the face of modern 'brainrot' memes due to its hypnotic absurdity and catchy beat. Users typically use the template to describe situations where they have completely lost focus, are vibing in inappropriate settings, or are succumbimg to the 'deer' side of the internet. Its popularity grew through countless parodies and rotoscoped versions featuring characters from other franchises.