The act of fluttering; quick and irregular motion.
A state of agitation.
An abnormal rapid pulsation of the heart.
A small bet or risky investment.
A hasty game of cards or similar.
(audio) The rapid variation of signal parameters, such as amplitude, phase, and frequency.
To flap or wave quickly but irregularly.
Of a winged animal: to flap the wings without flying; to fly with a light flapping of the wings.
To cause something to flap.
To drive into disorder; to throw into confusion.
To be in a state of agitation or uncertainty.
To be frivolous.