
1) English-language opera 2) Work by WS Gilbert
Found on
https://www.crosswordclues.com/clue/topsyturveydom

MY DREAM The other night, from cares exempt, I slept—and what d`you think I dreamt? I dreamt that somehow I had come To dwell in Topsy-Turveydom!— Where vice is virtue—virtue, vice: Where nice is nasty—nasty, nice: Where right is wrong and wrong is right— Where white is black and black is white. Where babies, much to their surprise, Are....
Found on
http://en.wikipedia.org/wiki/Topsyturveydom
No exact match found.