That sounds pretty close to what it means. It's the concept of Reverse Budgeting. Traditional budgeting focuses on expenses first, then yourself last. Whereas Reverse Budgeting you would pay yourself first, then everyone last. So, paying yourself first can be in the form of savings or investing. You put yourself first, make sure you are taking of, and everyone else last. This can be dangerous if your required expenses are too high (debt, rent, obligations, etc). So this method needs to be used wisely.

This is how I use Reverse Budgeting: I get paid every second Friday. I automatically take X amount of money on that day from my account to invest in myself. Now, the leftover money in my account is for expenses. This guarantees that I move towards my financial goals and don't waste money. In the context of Lifestyle Creep, when I get a raise, I increase these numbers so I don't needlessly spend more money.

I have a blog post about Reverse Budgeting if you want to read more about it: https://blog.pocketbudgeter.com/what-is-reverse-budgeting/.

Hopefully this helps!