There are ghosts that may flutter above the stage at the Met.
Then they sent us down to the surf for flutter kicks, heads in the waves.
Just as suddenly she was gone, leaving a flutter of red curtains.
Old English floterian "to flutter, fly, flicker, float to and fro, be tossed by waves," frequentative of flotian "to float" (see float (v.)). Related: Fluttered; fluttering. As a noun from 1640s; meaning "state of excitement" is 1740s.
flutter flut·ter (flŭt'ər)
Abnormally rapid pulsation, especially of the atria or ventricles of the heart.