monkey business不靠谱行为

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。

a monkey on one's back遇到了麻烦的事

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。

monkey suit制服，礼服

I hate going to weddings and wearing a monkey suit.

我很讨厌参加婚礼，也讨厌穿礼服。

monkey see, monkey do有样学样

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。

to make a monkey out of someone使某人出丑，耍弄(或愚弄，戏弄，嘲弄)某人

You may make a monkey out of someone when you make that person look foolish.

你可能戏弄了某人，让某人看起来很傻。

more fun than a barrel of monkeys非常有趣

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。