- (snooker, billiards, cue sports) to arrange in a rack
- At the start of the game, the referee racks up the red balls.
- (idiomatic) to gain (points etc.; in a game or sport)
- Chelsea racked up another 3 points at home to Bolton.
- (idiomatic) to acquire, to gather together.
- rack up some opinions about the new shopping center.
- (idiomatic) to defeat severely, to thrash