A Dope

(uncountable) Any viscous liquid or paste, such as a lubricant, used in preparing a surface.
(uncountable) An absorbent material used to hold a liquid.
(uncountable, aeronautics) Any varnish used to coat a part, such as an airplane wing or a hot-air balloon in order to waterproof, strengthen, etc.
(uncountable, slang) Any illicit or narcotic drug that produces euphoria or satisfies an addiction; particularly heroin. [from late 19th c.]
(uncountable, slang) Information, usually from an inside source, originally in horse racing and other sports. [from early 20th c.] Synonym: scoop
(uncountable, fireams) Ballistic data on previously fired rounds, used to calculate the required hold over a target.
(countable, slang) A stupid person. Synonyms: fool
(US, Ohio) Dessert topping.