Under no circumstances does a lady ever declare after eating that she is "full" or "stuffed". If her hostess offers her more when she has had enough, she smiles and simply answers, "No, thank you. I'm very satisfied." She never announces that she has eaten too much or in any way reports on the status of her stomach.
Principle: A lady may say that she is satisfied, but never full or stuffed.
Art: Lady at the Tea Table, Mary Cassatt.