a mixture of rum and water, often flavored with lemon, sugar, and spices and sometimes served hot.
2.
any strong alcoholic drink.
3.
fired and crushed clay.
Origin: 1760–70; from Old Grog (alluding to his grogramcloak), the nickname of Edward Vernon (d. 1757), British admiral, who in 1740 ordered the alcoholic mixture to be served, instead of pure spirits, to sailors.
grog (grŏg) n. An alcoholic liquor, especially rum diluted with water.
[After Old Grog, nickname of Edward Vernon (1684-1757), British admiral who ordered that diluted rum be served to his sailors, from grogram (from his habit of wearing a grogram cloak).]
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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Word Origin & History
grog
1770 (implied in groggy "intoxicated"), supposedly an allusion to Old Grog, nickname of Edward Vernon (1684-1757), British admiral who wore a grogram (q.v.) cloak and who in August 1740 ordered his sailors' rum to be diluted.