pay up
To repay a debt or bill in full. If you don't pay up soon, we're going to have to repossess your car. That dinner was delicious! Let's pay up and head over to the movie theater.
pay something up
to pay all of whatever is due; to complete all the payments on something. Would you pay up your bills, please? Your dues are all paid up.
pay up
to pay what is owed. (Often a command: Pay up!) I want my money now. Pay up! If you don't pay up, I'll take you to court.
pay up
Pay in full, discharge all that is owing, as in, It's late-let's pay up and go home. [c. 1800] Also see pay off, def. 1.
pay up
v. To pay some amount that is demanded in full: If you don't pay up by the end of the week, you'll be evicted.