Puppies tend to have sudden bursts of energy where they engage in boisterous play and then they suddenly flop down and fall asleep. (cuteness.com)
Whenever we see puppies in a group off lead there will be the timid ones hiding or avoiding boisterous play and the over-confident yobbos charging around bullying the less assertive. (dogsbarn.com)
It was not reasonably foreseeable that boisterous play on a bouncy castle would involve a significant risk of serious harm and so the parents who hired it did not have a duty of care to keep the children playing on it under constant supervision. (newlawjournal.co.uk)