Among the modern-day Festivus traditions is taking to X, formally Twitter, to unload pent-up resentment, anger and frustrations. Watch NBC 4 free wherever you are. WATCH HERE.

You might know Festivus as the Dec. 23 holiday made popular on "Seinfeld". But do you know about the day's origins? Here's the full story.

Among the modern-day Festivus traditions is taking to X, formally Twitter, to unload pent-up resentment, anger and frustrations. A new holiday was born. A Festivus for the rest of us!

Among the modern-day Festivus traditions is taking to X, formally Twitter, to unload pent-up resentment, anger and frustrations. A new holiday was born. A Festivus for the rest of us!

Among the modern-day Festivus traditions is taking to X, formally Twitter, to unload pent-up resentment, anger and frustrations. A new holiday was born. A Festivus for the rest of us!

Among the modern-day Festivus traditions is taking to X, formally Twitter, to unload pent-up resentment, anger and frustrations. A new holiday was born. A Festivus for the rest of us!

Among the modern-day Festivus traditions is taking to X, formally Twitter, to unload pent-up resentment, anger and frustrations. A new holiday was born. A Festivus for the rest of us!

The anti-holiday holiday made famous on "Seinfeld" is celebrated annually on Dec. 23. Here's a look at its origins, traditions and how to celebrate.

Among the modern-day Festivus traditions is taking to X, formally Twitter, to unload pent-up resentment, anger and frustrations. A new holiday was born. A Festivus for the rest of us!

Among the modern-day Festivus traditions is taking to X, formally Twitter, to unload pent-up resentment, anger and frustrations. Watch NBC 4 free wherever you are. WATCH HERE.

Among the modern-day Festivus traditions is taking to X, formally Twitter, to unload pent-up resentment, anger and frustrations. A new holiday was born. A Festivus for the rest of us!