the act of submission is to give in to another's dominant actions.
if there are two dogs and one starts attacking the other, this would be dominant behavior. if the other dog rolls onto his back and puts his tail between his legs and his ears down this would be submissive behavior.
in bearded dragons, dominant behavior is identified by rapid head bobbing, standing on one another and biting.
submissive behavior in dragons entails slow(allmost bowing) head bobs and arm waving.
i used to see this between my two dragons Mayze & Trouble. once i seperated them they calmed down alot. no more head bobs from Trouble and no more frantic arm waving from Mayze.