rack something ↔ up
From Longman Dictionary of Contemporary Englishrack something ↔ up phrasal verb informalPPVDSto get a number or amount of something, especially a number of points in a competition He racked up 41 points. → rack→ See Verb tableExamples from the Corpusrack up• Well you wan na, you wan na check this out and see if you can rack your brain up.