What is the meaning of dope?

noun

• Street names for marijuana.
  • synonyms: pot, grass, green goddess, weed, gage, sess, sens, smoke, skunk, locoweed, Mary Jane
• An ignorant or foolish person.
  • synonyms: dumbbell, dummy, boob, booby, pinhead
• Carbonated drink flavored with extract from kola nuts (`dope' is a southernism in the United States.
  • synonyms: cola
• Slang terms for inside information.
  • usage: "is that the straight dope"
  • synonyms: poop, the skinny, low-down

verb

• Take drugs to improve one's athletic performance.
• Add impurities to (a semiconductor) in order to produce or modify its properties.
  • usage: "The resistors have been doped"
• Give a narcotic to.
  • usage: "The athletes were dope by the coach before the race"
  • synonyms: dope up