The key turned with a snap, the door was flung open, and there stood Martha, in a corybantic attitude, brandishing a dinner-plate in one hand, a poker in the other ; her hair was dishevelled, her face red, and fury blazed in her eyes.
-- George Gissing, Will Warburton: A Romance of Life
I have a vivid recollection of him in the mysteries of the semicuacua, a somewhat corybantic dance which left much to the invention of the performers, and very little to the imagination of the spectator.
-- Bret Harte, The Writings of Bret Harte: Volume 10
Corybantic owes its English use from Latin, but originally refered to a Corybant, a a wild attendant of the goddess Cybele.