Definition of 'rack up'
Verb
- gain points in a game; "The home team scored many times"; "He hit a home run"; "He hit .300 in the past season"
Synonyms: score hit tally - place in a rack; "rack pool balls"
- defeat thoroughly; "He mopped up the floor with his opponents"
Synonyms: worst pip mop up whip - supply a rack with feed for (horses or other animals)