Argumentum ad Hitlerum [ahr-gyuh-men-tuhm ad hit-ler-uhm] [] adjective -
  1. a response to an argument in which a position or factual claim is rebutted by comparing its progenitor to Hitler, or the progenitor’s reasoning to that of the Nazis; the process of proving or disproving the initial claim is thereby subverted. {source}
Catastrophallic [kuh-tas-trow-fal-ik] adjective -
  1. any misfortune, mishap, failure or fiasco resulting from an assertion, presumption or pre-conception by a male member of the human species. {thanks wordchef}
Nimnamian [nim-nahm-ee-uhn] adjective -
  1. something that is utterly foolish.
  2. a foolish thought voiced, or action perpetrated by, a nim nam. {thanks julie solomon}
Techuliar [te-kyool-yer] adjective -
  1. an unexplained or strange technological snafu.  {thanks jbg}