The Deep Black Canyon of Rocke Bottom is a gargantuan, efficient nation, ruled by Underbelly with an even hand, and notable for its complete lack of prisons, daily referendums, and smutty television. The compassionate, democratic population of 26.737 billion Rocke Bottomers have some civil rights, but not too many, enjoy the freedom to spend their money however they like, to a point, and take part in free and open elections, although not too often.

The large government juggles the competing demands of Industry, Education, and Social Policy. It meets to discuss matters of state in the capital city of Downunder City. The average income tax rate is 52.8%.

The frighteningly efficient Rocke Bottomian economy, worth a remarkable 1,904 trillion rockes a year, is driven entirely by a combination of government and state-owned industry, with private enterprise illegal. However, for those in the know, there is a large, well-organized, quite specialized black market in Tourism, Information Technology, Basket Weaving, and Cheese Exports. The private sector mostly consists of enterprising ten-year-olds selling lemonade on the sidewalk, but the government is looking at stamping this out. Average income is 71,230 rockes, and evenly distributed, with the richest citizens earning only 3.5 times as much as the poorest.

Theories that hold water are considered to have failed, pranking is an art form, ratings for sitcom reruns are often much higher than election debates, and "Underbelly got your tongue?" has become a popular idiom. Crime, especially youth-related, is a serious problem, perhaps because of the country's complete lack of prisons. Rocke Bottom's national animal is the Rocke lobster, which frolics freely in the nation's sparkling oceans.

Rocke Bottom is ranked 31,162^nd in the world and 2^nd in God Only Knows Why This Region Exists for Most Cultured, scoring 78 on the Snufflebottom-Wiggendum Pentatonic Scale.