To take a long trip, often through a dangerous area (e.g. ghetto, Wal-Mart) to get back homeward. Named after Greek historian Xenophon's Anabasis (The March Up Country) where 10,000 Greek mercenaries had to escape back to Greece after their leader was killed.
Stan and me had to go on an Anabasis to get back to the Food Court after losing James to the Hot Topic Vampires.
by Franklin Jamison July 16, 2012