noun. A Christmas tradition as old as Mrs. Claus snorkeling an elf.
Real citation: "@smille Hee! It's the post-pie-pocalypse traditional family squabble!"
(Nov. 27, 2009, Wendy A F G Stengel, Twitter, http://twitter.com/wendywoowho/statuses/6112130756)
Made-up citation: "This post-pie-pocalypse has been the worst ever. Even the food babies didn't make it..."