catch up on

to do something you should have done before

• Tom is catching up on paperwork.
• I need to catch up on some sleep.
• I was just catching up on paperwork.
• I will catch up on my homework tonight.
• He had enough to do to catch up on his work.
• I've a lot of sleep to catch up on this week.
• Tom is back at the house, catching up on his sleep.
• We have to catch up on our work as soon as possible.
• Tom had planned to catch up on some work over the weekend.
• Tom is always sleeping in class. It almost seems like he goes to school just to catch up on his sleep.
• Tom is always sleeping in class. It almost seems as if he goes to school just to catch up on his sleep.