WTF is Festivus? Well, here you can get the whole story in one sitting. You’re welcome.
“Festivus is both a parody and a secular holiday celebrated on December 23rd that serves as an alternative to participating in the pressures and commercialism of the Christmas season.
“It has been described as “the perfect secular theme for an all-inclusive December gathering”.
“The episode refers to it as “a Festivus for the rest of us”, referencing its non-commercial aspect.
“It has also been described both as a “parody holiday festival” and as a form of playful consumer resistance.”
Read more on Wikipedia (YES, Wikipedia)