“For the time being”

“From the ground up”

From the beginning or basic level.

“In the loop”

Informed about what is happening.

“Food for thought”

Something worth thinking about.

“In the red”

Losing money or having debt.

“For a song”

For a very low price.

“Fly under the radar”

To avoid attention or notice.

“End of the line”

The point where something cannot continue.

“In the works”

Being prepared or developed.