My cards are in slot B
Satiated, full after a large meal. From the "Deal-A-Meal" infomercials featuring Richard Simmons where he claimed that "once you move your cards from slot A to slot B, you are done eating for the day".
Mom: Would you like another helping of meatloaf?
Son: No, all my cards are in slot B. I can't eat another bite.
Son: No, all my cards are in slot B. I can't eat another bite.