overdose /ˌəʊvə(ɹ)ˈdəʊs/verb 3/ˈəʊvə(ɹ)ˌdəʊs/ noun 1forms 3 verb3 •To dose to excess; to give an overdose, or too many doses, to someone. •To dose excessively, to take an overdose.Be careful not to overdose on those pills.She overdosed on cocaine. •(figurative) To indulge in something excessively.Claude overdosed on smack in a Chicago flophouse three years later. — 2019 overdose /ˈəʊvə(ɹ)ˌdəʊs/ noun1 •An excessive and dangerous dose of a drug.Drug overdoses are the leading cause of accidental death in West Virginia, and the state leads the country in fatal drug overdoses. OxyContin—nicknamed “hillbilly heroin”—is king. — 2012 formsoverdosed · overdosing · overdoses