The term 'A Flintstone' refers to the two main characters from the popular 1960s cartoon series, The Flintstones. Fred Flintstone is a four-letter word and Wilma Flintstone is a five-letter word. Fred is a caveman who works as a bronto crane operator at the Slate Rock and Gravel Company. Wilma is Fred's wife and the mother of their daughter, Pebbles. Together, Fred and Wilma are the iconic couple from Bedrock, living in a world of dinosaurs and other prehistoric creatures.