Runny Babbit by Shel Silverstein

The legendary creator of "Where the Sidewalk Ends" welcomes readers to the world of Runny Babbit and his friends Toe Jurtle, Skertie Gunk, Rirty Dat, Dungry Hog, Snerry Jake, and many others who speak a topsy-turvy language all their own. ( Ages 9-12)