1、 monkey around
monkey是指猴子，around是指周围，那么monkey around是指“猴子在旁边”吗？非也！
说到猴子，给我们的印象就是上蹿下跳，一刻都停不下来。monkey在这个口语表达中作动词用，monkey around就有“到处闲逛，无所事事”的意思，而在具体语境中，还可以表达“胡闹”的意思。如：
新浪博客
1、 monkey around
monkey是指猴子，around是指周围，那么monkey around是指“猴子在旁边”吗？非也！
说到猴子，给我们的印象就是上蹿下跳，一刻都停不下来。monkey在这个口语表达中作动词用，monkey around就有“到处闲逛，无所事事”的意思，而在具体语境中，还可以表达“胡闹”的意思。如：
It is dangerous to monkey around in the
workshop.
在车间里胡闹是危险的。
They just stare back at the crowds of people who turn out to watch them. Then they continue to monkey around and have a good time.
他们只是回过头来瞪着跑出来看的人群，然后继续胡闹，玩得不亦乐乎。
2、 monkey business
His wife could do nothing about his monkey business at the club.
他的太太对于他在俱乐部的不靠谱行为束手无策。
3、monkey see, monkey do
You must behave yourself, for your son is here. Monkey see, monkey do.
你要注意自己的言行。因为你儿子在这里，他会有样学样的。
4、a monkey on one’s back
This project is such a monkey on my back right now—I can't wait for it to be over.
这个项目真的很难，我希望它快点结束。
5、to make a monkey out of someone
You may make a monkey out of someone when you make that person look foolish.
6、more fun than a barrel of monkeys
He is quite popular with his friends because he is more fun than a barrel of monkeys.
他在朋友当中很有欢迎，因为他是个特别有趣的人。
在车间里胡闹是危险的。
They just stare back at the crowds of people who turn out to watch them. Then they continue to monkey around and have a good time.
他们只是回过头来瞪着跑出来看的人群，然后继续胡闹，玩得不亦乐乎。
2、 monkey business
His wife could do nothing about his monkey business at the club.
他的太太对于他在俱乐部的不靠谱行为束手无策。
3、monkey see, monkey do
You must behave yourself, for your son is here. Monkey see, monkey do.
你要注意自己的言行。因为你儿子在这里，他会有样学样的。
4、a monkey on one’s back
This project is such a monkey on my back right now—I can't wait for it to be over.
这个项目真的很难，我希望它快点结束。
5、to make a monkey out of someone
You may make a monkey out of someone when you make that person look foolish.
6、more fun than a barrel of monkeys
He is quite popular with his friends because he is more fun than a barrel of monkeys.
他在朋友当中很有欢迎，因为他是个特别有趣的人。