horseplay [ˈhɔ:rspleɪ]

例句:

• Horseplay is OK at work as long as are off the clock.
  马球是只要你的工作确定的关闭时钟.
  
• After the horseplay by the wicked students, the classroom floor was strewn with crumbled chalk dust.
  那班顽皮学生闹著玩儿,捏碎不少粉笔,过后, 教室地板上撒满了粉笔灰.
  
• "I thought it was horseplay," James said.
  来自WSJ
• Now they either used the word horsing around or horseplay.
  来自NEWYORKER
• You might say they've become a true thoroughbred outfit, if such linguistic horseplay was your thing.
  来自BBC