【俚语】

Splurge /splɜːdʒ/ v.
大手大脚花钱，挥霍

【例句】

I work so hard. I need to splurge every now and then. I deserve it.
我工作这么努力。我需要时不时地挥霍一下。这是我应得的。

Budget n. 预算

【例句】

You have to make a budget for your spending every month. Then you could save for the down payment on an apartment.
你必须为给每个月的开支做一个预算。这样就可以省下公寓的首付钱。

Be made of money 很有钱

【例句】

I know you want the new dress, but the answer is no. I'm not made of money.
我知道你想要这件新衣服，但答案是不能买。我没有钱。

You pays your money and you takes your chances.
你自己的选择，自己承担后果。

【例句】

I'm sorry to hear that the laptop you bought on that shady site doesn't work, but you pays your money, and you takes your chances.
你在那个破网站上买的笔记本电脑不能用，我感觉挺遗憾。不过你自己选的，你就自己承担后果。

Right on the money 恰好

【例句】

This project is going to be finished right on the money. So we could take some time off after that.
这个项目会按时按点做完。之后我们可以休息一段时间了。