godan verb (-u)
dance wildly; dance in ecstasy; dance like crazy
Describes dancing with abandon, often in a state of excitement, trance, or intoxication. The verb 狂う adds the sense of losing oneself in the action.
音楽に合わせて一晩中踊り狂った。
We danced wildly all night to the music.
彼女はまるで何かに取り
She was dancing as if possessed by something.