A person with very little working knowledge of the real world. A person whose job is to draw a red X to approximate a location on a map. A job given to chimpanzees to make them feel important.
“Hey Matt, how come that new girl in the office doesn’t do anything but paint her nails and talk on the phone?”
“Don’t mind her, she is a Red X'er, she doesn’t do anything! Although I did give her the Cincinnati bowtie in the break room”