joker [ˈdʒoʊkə(r)]

例句:

• Are you a devil Or merely a lunatic practical joker?
  来自T. S. Eliot
• Tell that joker to stop using my parking space.
  告诉那个家伙不要占用我的停车场.
  
• She put down a joker.
  她出了一张百搭牌.
  
• He is, by nature, a joker, a witty man with a sense of fun.
  他天性是个爱开玩笑的人，说话诙谐，很有幽默感。
  
• In our family my role is the joker, the comedian.
  来自W. Wharton
• He enjoys being the practical joker and the guy who pulls off some pranks.
  来自BBC