summing up noun1 •A summary of the main points, especially (law) a judge's recapitulation of the evidence given to a jury before it withdraws to consider its verdict.SOME SUMMING UPS / A lawyer’s opening address is properly a short talk to arouse interest in a selling proposition, the evidence is the sample and the summing up a final effort to close the sale. — 1922 formssumming ups · summing-ups · summings up · summings-up