Flutter

Webster's Dictionary of the English Language

·vt To drive in disorder; to throw into confusion.

II. Flutter ·noun Hurry; tumult; agitation of the mind; confusion; disorder.

III. Flutter ·vt To vibrate or move quickly; as, a bird flutters its wings.

IV. Flutter ·noun The act of fluttering; quick and irregular motion; vibration; as, the flutter of a fan.