Flutter \Flut"ter\, v. t.

1. To vibrate or move quickly; as, a bird flutters its wings.

2. To drive in disorder; to throw into confusion.

Like an eagle in a dovecote, I Fluttered your Volscians in Corioli. --Shak.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Flutter \Flut"ter\, n.

1. The act of fluttering; quick and irregular motion; vibration; as, the flutter of a fan.

The chirp and flutter of some single bird --Milnes. .

2. Hurry; tumult; agitation of the mind; confusion; disorder. --Pope.

Flutter wheel, a water wheel placed below a fall or in a chute where rapidly moving water strikes the tips of the floats; -- so called from the spattering, and the fluttering noise it makes.

Source: Webster's Revised Unabridged Dictionary (1913)