Otaku dance.
Otaku dance is a Japanese NicoNico animation originated from the trial jump area (踊ってみた), and ACGN culture-related dance activities, generally to ACGN culture-related music as the accompaniment, the activities of the crowd is mainly ACGN culture enthusiasts.
Otaku dance is a term used only in mainland China (there is no otaku dance or otaku danse in Japan, where it originated), and is generally used to refer to choreographed dance works or dance activities that use music related to ACGN culture as accompaniment.
Historical origin of otaku dance:
The term "otaku dance" originally came from "踊ってみた (踊ってみた)" on the Japanese video website NicoNico Animation. てみた" area, it is believed that the earliest dancer "nosebleed Ji" (いとくとら, was the captain of the Japanese female dance group DANCEROID) in 2008 released in the "NicoNico animation" "踊ってみた" area at home to make videos to entertain themselves.
The term "宅舞" is a common name for "踊ってみた" by Chinese domestic dancers, and "踊ってみた" directly translates to "try to dance". It refers to dance events originating from the NicoNico anime's trial dance area (踊ってみた), and other dances that utilize the NicoNico anime's originating repertoire.