"food," 1856, Amer.Eng. (originally in California), from Chinese pidgin Eng. chow-chow (1795) "food," reduplication of Chinese cha or tsa "mixed." The dog breed of the same name is from 1886, of unknown origin, but some suggest a link to the Chinese tendency to see dogs as edible.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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