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      Festivus 2013: Pseudo-holiday celebrated by Seinfeld fans, people nationwide

      Festivus became part of American culture after an episode of Seinfeld. Photo: NBC

      (WJLA) - If you're not high on Christmas, or you're bummed that Hanukkah has already passed you by, never fear - there's a Festivus for the rest of us.

      Dec. 23 marks the annual celebration of Festivus, a pseudo-holiday popularized by the sitcom Seinfeld.

      One of the show's writers, Dan O'Keefe, injected his family's tradition into an episode of the show, during which celebrants erect a Festivus pole (in lieu of a Christmas tree or menorah) and perform the "feats of strength."

      Most notably, Festivus is marked by the annual "airing of grievances," when family members let their problems all hang out.