main rag
n.— «So were stagehands aligning a towering red scaffold to begin a two-day job of erecting the teal curtain, the “main rag” in theater parlance.» —“State Theatre readies for grand opening” by Chris Rosenblum in State College Centre Daily Times (Pennsylvaia) Dec. 11, 2006. (source: Double-Tongued Dictionary)
Further reading
The slang phrase someone ate and left no crumbs means the person did something really well. In a previous call, a listener who works in theater noted the use of ate to mean “did something well,” as in they really ate that haircut! This...
There was a time when William Shakespeare was just another little seven-year-old in school. Classes in his day were demanding — and all in Latin. A new book argues that this rigorous curriculum actually nurtured the creativity that later flourished...