The Great American Grump Out is held the first Wednesday of every May. I know this because I am the creator of the Grump Out. My name is Janice A. Hathy and you can find out more about the Grump Out on my web site smilemania.com If you have any questions or if you have some cool stuff you've done for Grump Out day, visit the web site and sign our Guestbook. We'd love to read about it!!!