Definition of knockout drops in English:

knockout drops

Syllabification: knock·out drops

noun

A drug in liquid form added to a drink to cause unconsciousness.
More example sentences
  • The young ingenue played by Béatrice Romand administers ‘knockout drops’ to a group of high-ranking Nazi officers who frequent the brothel where she works.

Definition of knockout drops in:

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Word of the day ween
Pronunciation: wiːn
verb
be of the opinion; think or suppose