HOGWASH
bunk, bunkum, buncombe, guff, rot, hogwash
(noun) unacceptable behavior (especially ludicrously false statements)
Source: WordNet® 3.1
Etymology
Noun
hogwash (usually uncountable, plural hogwashes)
(informal, figurative) Foolish talk or writing; nonsense.
Synonym: nonsense
(literal) A mixture of solid and liquid food scraps fed to pigs; swill. [from mid 15th c.]
Synonyms: slop, slops, swill
Synonyms
• (foolish talk): See Thesaurus:nonsense
Source: Wiktionary
Hog"wash`, n.
Definition: Swill. Arbuthnot.
Source: Webster’s Unabridged Dictionary 1913 Edition