The Collaborative International Dictionary
Roorbach
Roorback \Roor"back\, Roorbach \Roor"bach\, n. A defamatory forgery or falsehood published for purposes of political intrigue. [U.S.]
Note: 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.''
Wiktionary
roorbach
n. (context US dated English) A defamatory forgery or falsehood published for purposes of political intrigue.