roughhouse
verb [ I or T ] US or old-fashioned uk/ˈrʌf.haʊs/ us/ˈrʌf.haʊs/
打闹，玩闹
to fight in a way that is not serious
A couple of boys were roughhousing (each other) in the park. 几个男孩子在公园中（相互）打闹。
roughhouse
noun [ C usually singular ] US or old-fashioned uk/ˈrʌf.haʊs/ us/ˈrʌf.haʊs/
（赤手空拳的）打群架，群殴
a fight between many people, without weapons