Definition from Wiktionary, the free dictionary
megamusical (plural megamusicals)
- (informal) A particularly elaborate or successful musical.
2007 August 2, Ben Brantley, “Titters, Snickers and Guffaws, With a British Accent”, in New York Times:
- Save the C-notes for eye-filling megamusicals or, maybe, a good-for-you drama of intellectual aspirations, preferably with a script from England and a star from Hollywood.