Normally experienced after Thanksgiving and/or Christmas dinners. A person experiences turkey paralysis after they have consumed an excessive amount of food. This ultimately leads the body into a state of paralysis from being so full and the rest of the evening is normally spent being unable to move on the couch.
Ryan: "How was your Christmas dinner last night?"
Cody: "Way too much food... I entered a state of turkey paralysis. I couldn't move after dinner."