to borrow money from someone in order to give to someone else the money that you already owe them.

Then I'd take out another loan to pay my debts, robbing Peter to pay Paul.

• keep a tight rein on something
• keep at something
• keep a weather eye on
• keep a weather eye on someone
• be sacrificed on the altar of
• be sacrificed on the altar of something
• be said for
• be said for doing something
• be said for something
• be scared out of mind
• be scared out of your mind
• be scared shitless
• be scared to death
• be scattered to the four winds
• be second to none
• be set in concrete
• be set in stone
• be several cards short of a full deck
• be shaking in boots
• be shaking in shoes
• be shaking in your boots
• be shaking in your shoes
• be shit scared
• be shitting bricks
• be short of a bob or two