Calvin and Hobbes by Bill Watterson for April 22, 1989
Mom: Look, Calvin, I brought home some jelly doughnuts. Would you like one. Calvin: No, jelly doughnuts gross me out. They're like eating giant, squishy bugs. You bite into then and all their purple guts spill out the other end. You can eat them. Mom: My friends ask me how I stay so thin.