draw a line under something
From Longman Dictionary of Contemporary Englishdraw a line under somethingdraw a line under somethingFINISH/COME TO AN ENDto say that something is completely finished and you will not think about it again I just want to draw a line under the relationship. → drawExamples from the Corpusdraw a line under something• I can't allow him to draw a line under my relationship with Gloria.• She liked to draw lines under things.• The Office of Government Commerce was set up last April to draw a line under this relatively poor performance.