\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.''