Popular '90s sitcom 'Seinfeld' introduced many to Festivus, the celebration for "the rest of us." But is it a real holiday? Here's what we know.

Festivus was the brainchild of Seinfeld writer Dan O'Keefe, ... One tradition that didn't make it to the episode however was O'Keefe's father putting a clock in a bag and nailing it to a wall.

Festivus was the brainchild of Seinfeld writer Dan O'Keefe, ... One tradition that didn't make it to the episode however was O'Keefe's father putting a clock in a bag and nailing it to a wall.

Instead of a pole, his family celebration featured a clock and a bag. (O’Keefe has said his father won’t disclose what they symbolized.) What do you eat at a Festivus dinner?

Festivus was the brainchild of Seinfeld writer Dan O'Keefe, ... One tradition that didn't make it to the episode however was O'Keefe's father putting a clock in a bag and nailing it to a wall.

Festivus brings EVERYONE together, but we still can't get a lousy day off of ... "The real symbol of the holiday was a clock that my dad put in a bag and nailed to the wall every year,” O ...

O'Keefe also said there was a clock kept in a bag during the holiday, but he did not know its symbolic significance. The real Festivus is more 'bizarre and sinister' than what's in 'Seinfeld' ...

Festivus is a wacky holiday popularized in a 1997 “Seinfeld” episode. ... Instead of a pole, his family celebration featured a clock and a bag.

Festivus was the brainchild of Seinfeld writer Dan O'Keefe, ... One tradition that didn't make it to the episode however was O'Keefe's father putting a clock in a bag and nailing it to a wall.

Festivus was the brainchild of Seinfeld writer Dan O'Keefe, ... One tradition that didn't make it to the episode however was O'Keefe's father putting a clock in a bag and nailing it to a wall.

Festivus was the brainchild of Seinfeld writer Dan O'Keefe, ... One tradition that didn't make it to the episode however was O'Keefe's father putting a clock in a bag and nailing it to a wall.

Festivus was the brainchild of Seinfeld writer Dan O'Keefe, ... One tradition that didn't make it to the episode however was O'Keefe's father putting a clock in a bag and nailing it to a wall.