Potpourri
Reindeer whose name also means a celestial body made of ice, dirt, and rock material.
Comet
Christmas song which includes "no crib for a bed."
Away in a Manger
On the sitcom Seinfeld, the holiday that included an "airing of grievances," an undecorated aluminum pole, and the "Feats of Strength" wrestling match.
Festivus
Can mean to go door-to-door giving out well wishes or a hot and thick spiced beverage.
Wassail