also: でんぐりかえる
godan verb (-ru), intransitive verb
turn a somersault; turn head over heels; turn topsy-turvy
Describes a person or thing flipping over, either intentionally (a somersault) or accidentally (tumbling). The verb is intransitive.
子供が芝生の上ででんぐり返った。
The child turned a somersault on the lawn.
自転車がでんぐり返って、
The bicycle flipped over and the luggage scattered.