What Does Flutter Mean?

To flutter is to wave or flap about at a high speed in a haphazard manner. For example, "the leaves fluttered in the wind". To flutter also refers to the activity of flight through a rapid flapping of wings.

It also refers to something that moves or falls in a way as to suggest turbulent flight. It is also used to denote rapid vibration or erratic beating, especially used in the context of the heart. For example, "Her heart fluttered wildly when she saw him from a distance".

To flutter also refers to quick or excited movement, as a result of nervousness or restlessness. It refers to a state of anxiety or excitement. For example, "they were in a flutter when they came to know of hi resignation".

A flutter also refers to a small bet or wager for a small amount.

It mean nothing gosh verb nothing

It means flickering

Flutter means to move gently, no quick moves
Like a bird would move while flying,
also to see a tree lightly moving in the wind

Sorry I was wrong in my answer Cinnamon is right.
It does mean to move quickly
to move in a restless way. A state of excitement.