Douglas Harper's Etymology Dictionary
Wiktionary
n. (alternative spelling of catch up English)
Usage examples of "catch-up".
Their midcourse maneuver had put them slightly ahead for now, and my hopes for getting permission for an autonomous catch-up burn were about nil.
They were still playing catch-up, but they'd managed to considerably narrow the gap between themselves and their potential enemies.
The twenty-first was a Tuesday, and certainly Marx, who'd been out of the country for a couple of months, would have many errands and catch-ups to do, perhaps a multitude of visitors and appointments.
Sunday day duties were usually quiet in the Seventeenth, a good time for a detective to play catch-up on his paperwork.
Those Medellin bastards stepped way over the line, and they did it in an election year, and Ryan was in the right place to play a little catch-up ball, and so somebody issued him a hunting license, and maybe things got a little out of hand--it happens--and so he goes down there to shut it down.