1. racing (of an engine), idling, spinning (without grabbing; of wheels)

intransitive verb noun or participle which takes the aux. verb suru noun (common) (futsuumeishi)

2. going round in circles (of an argument, discussion, etc.), going nowhere, being fruitless

intransitive verb noun or participle which takes the aux. verb suru noun (common) (futsuumeishi)