noun

• (pharmacology) A substance used to treat an illness, relieve a symptom, or modify a chemical process in the body for a specific purpose.
  "Aspirin is a drug that reduces pain, acts against inflammation and lowers body temperature."
• (by extension) Anything, such as a substance, emotion, or action, to which one is addicted.
  "Oh, get that buzz / Love is the drug / I'm thinking of"
• (Canada, US, informal) Ellipsis of drugstore.
  "“I’ll go this far,” I answered him. “We’ll try going over to the drug. You, me, Ollie if he wants to go, one or two others. Then we’ll talk it over again.”"

verb

• (transitive) To administer intoxicating drugs to, generally without the recipient's knowledge or consent.
  "She suddenly felt strange, and only then realized she'd been drugged."
• (transitive) To add intoxicating drugs to with the intention of drugging someone.
  "She suddenly felt strange. She realized her drink must have been drugged."
• (intransitive) To prescribe or administer drugs or medicines.
  "Past all the doses of your drugging doctors"
• (intransitive, rare) To use intoxicating drugs.
  "To soften the blow from working in such unfamiliar territory, I drank and drugged at the end of the day."

verb

• (dialectal, chiefly Southern US) simple past and past participle of drag
  "You look like someone drug you behind a horse for half a mile."

noun

• (obsolete) A drudge.
  "Hadst thou, like us from our first swath, proceeded / The sweet degrees that this brief world affords / To such as may the passive drugs of it / Freely command, thou wouldst have plunged thyself / In general riot"