dope

noun

1》 informal an illegal drug, especially cannabis or (US) heroin.

    ↘a drug used to enhance the performance of an athlete, racehorse, or greyhound.

2》 informal a stupid person.

3》 informal information.

4》 a varnish formerly used to strengthen the fabric surface of aircraft.

5》 a lubricant.

verb

1》 administer dope to (a racehorse, greyhound, or athlete).

    ↘(be doped up) informal be heavily under the influence of drugs.

2》 cover with varnish or other thick liquid.

3》 Electronics add an impurity to (a semiconductor) to produce a desired electrical characteristic.

4》 (dope something out) informal, dated work something out.

adjective black slang very good.

Derivatives

doper noun

Origin

C19 (in the sense 'thick liquid'): from Du. doop 'sauce', from doopen 'to dip, mix'.