1.marijuana or hashish; 2. any drug, especially a narcotic; 3. stimulating drug illegally given to a racehorse to either induce greater speed or impair its performance; 4. information or data (originally used in horseracing contexts, i.e. the information about which horses have been doped or not); 5. stupid person (possibly a separate word; originally found in British dialect (Cumberland; mid-19th C.); in this dialect âdopeâ is a variant of âdowpâ - âcarrion crowâ, which conceivably could be used in a derogatory manner to refer to people); 6. affect with dope or drugs; 7. very cool and sophisticated: âthe dopest nightclub aroundâ (recent (1990s) borrowing from the US) (all senses, except 4, originally US slang; originally (early 19th C.) meaning âsauceâ, âgravyâ, from Dutch âdoopâ = âdipping sauceâ)
a slow or foolish person i.e. "He's a bit of a dope". A common term for cannabis (see Bob Hope). More recently it has been taken on by the younger generation to mean 'cool' or 'excellent' (originating in the US).