| Clue | Source | Date |
|---|---|---|
| It falls on the eve of Christmas Eve | New York Times | 25 May 2024 |
| Fictional non-secular holiday celebrated on 12/23 | ||
| Holiday celebrated by Kramer and Frank Costanza | Wall Street Journal | 05 Apr 2017 |
| "Seinfeld" holiday that begins with the Airing of Grievances | ||
| Annual holiday with an "airing of grievances" | ||
| December holiday inspired by "Seinfeld" |