joker
n
1 (infml 口) person who is fond of making jokes; foolish irresponsible person 爱开玩笑的人; 愚蠢而不负责任的人
Some joker´s been playing around with my car aerial! 哪个爱胡闹的人摆弄我汽车上的天线了!
2 (infml 口) person who is not treated seriously 不受重视的人
I don´t want that jokerin my sales team. 我们销售部门不想要那个家伙.
3 extra playing-card used in certain card-games (某些纸牌戏中的)百搭.