1. Expression：in the hole
Explanation：Lacking money or some other resource; in debt. （负债，亏空，遇到经济困难）
Example：I'm really in the hole after that night at the casino.
I went into the hole on that deal and now I'm $200 in the hole.
A：I have not seen Jane for ages, how is she going now?
B: You don’t know? She has been in the hole since two years ago.
A: Really? Then I must go to see her.
2. Expression：burn a hole in the pocket
Explanation：It is usually applied to money, suggesting that the person with the money feels the need to spend it quickly. （把钱花光）
Example：I bet John will spend all his money in a few days because the money is burning a hole in his pocket.
Don't let that bonus burn a hole in your pocket—save it up for something you really want.
I knew that he would go out and buy everything he saw because the money was burning a hole in his pocket.
My allowance is burning a hole in my pocket! I can't wait until school is over, so I can go buy some baseball cards!
3. Expression：in the red
Explanation：In debt. （负债，亏损，赤字）
Example：Sales began to drop and the company was soon in the red. They had to sell the building.
The annual budget of that company continues to show a deficit this year. It will go out of business because it is always in the red.
Now your company will end up financially in the red.
I have so many outstanding parking tickets that I'll be in the red if I pay them all off at once!
A: Jane has to sell her car, because her company has been in the red for years.
B: What a pity! I hope that I can help her.
A: Don’t worry about her. She will manage to pull through the terrible periond of time in the end.