Size of this preview: 624 × 479 pixels. Other resolutions: 313 × 240 pixels | 625 × 480 pixels | 781 × 600 pixels | 1,000 × 768 pixels. Full resolution (download) (1,169 × 898 pixels, file size: 533 KB, MIME type: image/png) About File History There is no description yet. Add a description. Appears on these pages of Homer vs. Lisa and the 8th Commandment/Gags Chalkboard Gag I will not make flatulent noises in class. Add a photo to this gallery Add a... 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 current10:41, December 2, 20111,169 × 898 (533 KB)Jhonevans (wall | contribs) Read more List of couch gags/Seasons 21-25 List of couch gags/Season 26-TBA List of billboard gags Retrieved from "http://simpsons.wikia.com/wiki/File:2CE13.png?oldid=233461"