Definition of "overdose"

overdose¹

/ˈəʊvə(ɹ)ˌdəʊs/

noun
plural overdoses
1. An excessive and dangerous dose of a drug.

overdose²

/ˌəʊvə(ɹ)ˈdəʊs/

verb
third-person singular simple present overdoses, present participle overdosing, simple past and past participle overdosed
1. (transitive) To dose to excess; to give an overdose, or too many doses, to.
2. (intransitive) To dose excessively, to take an overdose.
3. (intransitive, figurative) To indulge in something excessively.
  Quotations
  They still had Sergio Agüero to bring off the bench and the Etihad was overdosing on optimism. For the game to finish with an aggregate 5-1 score distorts the fact the occasion was full of drama and suspense until Salah’s goal conclusively changed the complexion of the evening.
  2018 April 10, Daniel Taylor, “Liverpool go through after Mohamed Salah stops Manchester City fightback”, in The Guardian (London)‎