The photographer has acknowledged a/his 'debt' to Andy Warhol. [=the photographer has said that his work was influenced by the photographs made by Andy Warhol]
banks with millions of dollars of 'bad debt' [=banks that have loaned millions of dollars that will not be repaid]
She's finally paid off her mortgage 'debt'. [=the money that she owed the bank to pay for her house]
(..) One way or another, I'm confident Kirk will come. I'll have his head, and you'll end up in the Oval Office, where you can pay off your debt to me with a full pardon. You expect me to pardon you. Not me. Elizabeth Keen. The FBI agent... who murdered the attorney general. (..)2016 TvShow: The Blacklist Title: Alexander Kirk (No. 14): Conclusion Season: 3 Episode 23