Meaning

• (cue sports) to arrange in a rack

  "At the start of the game, the referee racks up the red balls."

• To gain (points etc.; in a game or sport), to accumulate

  "Chelsea racked up another 3 points at home to Bolton."

• To acquire, to gather together.

  "By the age of 18, he had already racked up thousands of dollars in debt."

• To defeat severely, to thrash