Definition of: dope

(dōp) noun
1. Slang Any potentially harmful narcotic used for inducing euphoria.
2. Slang A dope fiend.
3. A drug given to a race horse to influence its speed.
4. Slang Information as to the condition, past performance, etc., of a race horse.
5. Slang Any information; also, a calculation or forecast based on it; hence, confidential or inside information.
6. Any thick liquid or semifluid, as an article of food, a lubricant, etc.; specifically, axle grease.
7. An absorbent material for holding a thick liquid, as cotton waste, or a substance for holding nitroglycerin, as in dynamite.
8. Aeron. Any material used in treating the cloth surface of airplane members to increase strength or produce or maintain tautness.
9. Slang A stupid person.
—v.t.
1. To give or administer dope to (a race horse).
2. Slang To stupefy or exhilarate as by a drug: often with up.
—to dope out U.S. Slang
1. To plan, as a course of action.
2. To figure out; solve. [<Du. doop dipping sauce <doopen dip]