rack something up

rack up

1. To acquire or accumulate a large number or amount of something. A noun or pronoun can be used between "rack" and "up." The team quickly racked up 35 points in the first 20 minutes of the game. You have to rack customer reward points up for years before you can actually use them for something worthwhile.
2. To place billiard balls in a shaped rack to set up for a new game. A noun or pronoun can be used between "rack" and "up." I'll go get the pool cues while you rack the balls up. Rack up! I'll break.
See also: rack, up

rack something up

1. tv. to accumulate something; to collect or acquire something. We racked up twenty points in the game last Saturday.
2. tv. to wreck something. He racked up his arm in the football game.
See also: rack, something, up