Picnic is the euphemism for a daylong eating orgy in Gordon’s Wilberforce Goes on a Picnic (1982). It’s the story of obese bears and a goat, who collectively devour mounds of hamburgers on rolls, sandwiches, a jar of catsup, a bowl heaped with mashed potatoes, bananas, peaches, plums, pie, cake, tarts, and soft drinks. The young bears wash and go to bed, but grandmother and grandfather, relax with a supper of fried eggs, sausages, and tea. Sated, the family falls into a sleep (stupor). When rain awakens them, they pack up and drive back to town. 
The menu includes hamburgers, rolls, catsup, sandwiches, mashed potatoes, bananas, peaches, plums, pie, cake, tarts, and soft drinks.
Featured Image: “And they ate until they were full.”
See Margaret Gordon. “And they ate until they were full,” from Wilberforce Goes on a Picnic. New York: William Morrow and Company, 1982