A sacred holiday and annual event, occurring on the night before Thanksgiving wherein a group of honored guests and loved ones gather around at a local White Castle.

They then challenge each other to a competition as to who can eat more White Castle burgers. Cheese is optional but does not adjust your score; consume cheese at your own risk.
At Fat Fest 08, Andy won with 21 White Castles, and at Fat Fest 07, Stolis won with 20 burgers.
by AKlim November 25, 2009
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