n. bad food or drink. : This stuff is hogwash. Take it away.
n. nonsense. : Hogwash! That's about enough of your lies!
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
hogwash
c.1440, from hog + wash; originally "slops fed to pigs;" extended to "cheap liquor" (1712) then to "inferior writing" (1773).