black water
n.— «A brave West Australian Government is considering asking its residents to at least think about drinking recycled sewage water. In Victoria, the Bracks Government has firmly ruled it out and the Liberals agree there is no need for a move to drink what is known as black water.» —“Recycled sewage water a political turn-off” by Ellen Whinnett Herald Sun (Australia) Jan. 5, 2007. (source: Double-Tongued Dictionary)
Further reading
Understanding the varieties of conversational styles can mean the difference between feeling you’re understood and being insulted. “High-involvement” speakers interrupt or talk along with someone else to signal their enthusiasm...
Astronauts returning from space say they experience what’s called the overview effect, a new understanding of the fragility of our planet and our need to reflect on what humans all share as a species. A book about the end of the universe...