Contraction of global + dweeb.
The political leader was a gweeb. He thought that New Mexico was a separate country; when in fact, it is one of the 50 States within the United States of America!
Contraction of global + dweeb (slang for idiot)
An American tourist visiting Germany was in Koln (that's the German name for the city of Cologne) frantically asking everyone at the train station for directions on how to get to Cologne. That gweeb didn't realize he was ALREADY in Cologne!