watershed
n.— «Jargon watch: when people talk about “the watershed,” they mean the difference between 8 pm and earlier, when kids might be watching, and 9 pm, when if kids are still up, it’s their parents’ fault. Our show is probably a post-watershed show. Heidi and Sarah’s are perfect family viewing.» —“Congrats Heidi and Sarah!” by Alex Epstein Complications Ensue: The Crafty TV and Screenwriting Blog July 22, 2007. (source: Double-Tongued Dictionary)
Further reading
The word filibuster has a long and colorful history, going back to the days when pirates roamed the high seas. Today it refers to hijacking a piece of legislation. Plus, the language of yoga teachers: When doing a guided meditation, you may hear...