No higher resolution available. The-Simpsons-s04e17-Last-Exit-To-Springfield.jpg (download) (624 × 480 pixels, file size: 24 KB, MIME type: image/jpeg) About File History There is no description yet. Add a description. Appears on these pages of Last Exit to Springfield/Gags Mud is not one of the 4 food groups. List of chalkboard gags The following is a list of chalkboard gags seen on The Simpsons. File history Click on a date/time to view the file as it appeared at that time. Date/TimeThumbnailDimensionsUserComment current14:27, May 5, 2012624 × 480 (24 KB)Littledog169 (wall | contribs) Read more List of Lisa's sax solos List of couch gags/Seasons 6-10 Sometimes characters on the Simpsons break the fourth wall. In "Treehouse of Horror XVIII... Breaking The Fourth Wall Retrieved from "http://simpsons.wikia.com/wiki/File:The-Simpsons-s04e17-Last-Exit-To-Springfield.jpg?oldid=294449"