definition of
rack up

[1] #1 rack up v. gain points in a game; "The home team scored many times"; "He hit a home run"; "He hit .300 in the past season". wn

[2] #2 rack up v. place in a rack; "rack pool balls". wn

[3] #3 rack up v. defeat thoroughly; "He mopped up the floor with his opponents". wn

[4] #4 rack up v. supply a rack with feed for (horses or other animals). wn