Roorback
Roorback , noun
A defamatory forgery or falsehood published for purposes of political intrigue. [United States]
The word originated in the election canvass of 1844, when such a forgery was published, to the detriment of James K. Polk, a candidate for President, purporting to be an extract from the “Travels of Baron Roorbach.”
Also: Roorbach