If you are wondering what a Goober is, there is a picture of one at:
Two goobers were driving a semi down a road when they came to a viaduct. The sign said 10 feet zero inches, so they got out to measure their truck. Unfortunately, the truck was just over 12 feet high.
They didn't know what to do, when finally one of them looked both directions and said, "I don't see any cops, let's go for it!"