n. hashish; cannabis in general. (Drugs.) : The amount of hash that moves into this city in a single day would astound you.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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American Heritage
Idioms & Phrases
settle someone's hash
Subdue or get rid of someone, deal with a troublemaker, as in If John starts another argument we know just how to settle his hash. This term, dating from about 1800, uses hash in the sense of "a mess."