The friends took out some money and threw into the box, one after the other.

If not, you could be simply throwing good money after bad.

I went back for the rest and threw them after the first.

If there was only a way to throw one right after the other.

Until that is changed, we will continue to throw good money after bad.

At some point, you need to stop throwing good money after bad.

In other days she would have been thrown out of school after the first month.

As my mother always says, there's no point in throwing good money after bad.

"Thank you, but I have lost enough already, without throwing good money after bad, as the saying is."

"You don't throw good money after bad, so why continue to pay her not to work?"