head over heels in debt
Fig. deeply in debt. Finally, when she was head over heels in debt, she cut up her credit cards. I couldn't stand being head over heels in debt, so I always pay off my bills immediately.
in debt
having debts; having much debt; owing money. Mary is deeply in debt. I am in debt to the bank for my car loan.
*out of debt
no longer owing a debt. (*Typically: be ~; get ~; get oneself ~.) I've taken a second job so I can get myself out of debt.
owe someone a debt of gratitude
a large amount of thanks owed to someone who deserves gratitude. (Actually payment of the debt is owed.) We owe you a debt of gratitude for all you have done for us.
pay one's debt (to society)
Cliché to serve a sentence for a crime, usually in prison. The judge said that Mr. Simpson had to pay his debt to society. Mr. Brown paid his debt in state prison.