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To accumulate, or to record the total or accumulated amount of something. A noun or pronoun can be used between "clock" and "up." Considering how many miles I've clocked up on my car, I think it's time to get a new one. Their star player has clocked up an impressive number of points this early in the season. Clock another win up for the home team.
clock something up
1. to record the accumulated hours, miles, etc., of some device or machine. (The recording is usually done by a meter of some type such as a speedometer, an elapsed time meter, etc. She must have clocked two hundred flying hours up in six months. She clocked up a lot of hours.
2. to reach a goal that is worthy of being recorded. (*Typically sports journalism. Compare this with chalk something up.) Patrick clocked a fantastic number of points up this year. He sure clocked up a lot of goals.
Record accumulated hours, miles, or points. For example, It won't be easy to clock up 1,000 flying hours, or Brian clocked up a record number of baskets this year. [Mid-1900s]