'Follies' definitions:

Definition of 'follies'

noun

A revue with elaborate costuming

From: GCIDE

Folly \Fol"ly\, n.; pl. Follies. [OE. folie, foli, F. folie, fr. fol, fou, foolish, mad. See Fool.]
1. The state of being foolish; want of good sense; levity, weakness, or derangement of mind. [1913 Webster]
2. A foolish act; an inconsiderate or thoughtless procedure; weak or light-minded conduct; foolery. [1913 Webster]
What folly 'tis to hazard life for ill. --Shak. [1913 Webster]
3. Scandalous crime; sin; specifically, as applied to a woman, wantonness. [1913 Webster]
[Achan] wrought folly in Israel. --Josh. vii. 15. [1913 Webster]
When lovely woman stoops to folly. --Goldsmith. [1913 Webster]
4. The result of a foolish action or enterprise. [1913 Webster]
It is called this man's or that man's "folly," and name of the foolish builder is thus kept alive for long after years. --Trench. [1913 Webster]