Festivus is celebrated each year on December 23. Its slogan is "A Festivus for the rest of us!"
Festivus is a nondenominational holiday popularized by Seinfeld, a popular American television sitcom
of the 1990s. It was featured on episode number 166 of the show, entitled The Strike, which first aired on 18 December 1997. Many fans of Seinfeld now celebrate the fictional holiday in real life.
The character Frank Costanza (played by Jerry Stiller) created it as an alternative holiday in response to the commercialization of Christmas. He explained its origins during the episode to the character Cosmo Kramer (played by Michael Richards), as seen in the following dialogue:
Frank Costanza: Many Christmases ago, I went to buy a doll for my son. I reached for the last one they had, but so did another man. As I rained blows upon him, I realized there had to be another way.
Cosmo Kramer: What happened to the doll?
Frank Costanza: It was destroyed. But out of that a new holiday was born . . . a Festivus for the rest of us!
Cosmo Kramer: That must've been some doll.
Frank Costanza: She was!