do or die adjective 2verb 1forms 4 adjective2 •Requiring a determined or desperate effort to avoid the consequences of failure.Clinton and Dole brought different needs to the debate. For Dole it was do or die. He had to hit Clinton hard but without seeming harsh, a conundrum for him all year. — 1996 •Requiring a determined or desperate effort in order to avoid the consequences of failure.At that period the L.N.W.R., with its Webb compounds, was addicted to late arrivals at Carlisle and the Caledonian proceeded to make up the arrears with a "do-or-die" attitude. — 1959 verb1 •To act with sufficient urgency to result in either immediate success or immediate failure.Lay the proud Usurpers low! / Tyrants fall in every foe! / Liberty's in every blow! / Let us do or die! — 1793 formsdid or died · done or died · doing or dying · does or dies