No more monkey business! 不要再胡搞了!
No kidding around. 少在这儿戏耍.
Quit horsing around. 少在一边儿胡闹. Don't monkey around. 别在这儿捣蛋.
Wipe that silly grin off your face. 把你的蠢笑容收起来.
Don't be cute. 不要跟我耍小聪明. Don't get funny (with me) 少跟我装疯卖傻.
