Mark: She has the Thanksgiving Syndrome.
John: The what?
Mark: Our cousin fucking raped her last month, and the unconvicted son of a bitch is going to be at our Christmas dinner tomorrow.
Characterized by a horrible sick and overstuffed feeling, sometimes followed by the urge to throw up as you lay sprawled out on the couch desperately trying to feel better.
Yeah, you know you shouldn't have eaten that last piece of pie, but damn... it was soo good!
"Dude, what's wrong?"
"Uhhhhhhhrrggg... I ate to much _insert holiday here_ food and now my stomach's killing me..."
"Yikes, looks like you've got Thanksgiving Syndrome bad."
"Ughhh... I'm NEVER going to eat again..."