Wiktionary
vb. (present participle of settle up English)
Usage examples of "settling up".
That night visitor with the knife might have been Carter Stockwell thinking about settling up.
When Rostov approached her she was standing settling up for the game.
Dad'll have all he can manage settling up for the doctor and nurses, even with his insurance.
This might've been Bossk's way of finally settling up old scoresor at least trying to.
You know me, and Ardelia still owes me a settling up, so that is a start .
John was busy that month and left the bills to her, the next month he was absent, but the third he had a grand quarterly settling up, and Meg never forgot it.
His fleet accountant had turned in a busy couple of days, settling up with the insurance company who finally had their freighter and crew back, applying for salvage fees for the hijacker's captured ships, and filing the official claims for bounty to the Vega Station Embassy.