flutter

1 flutter /ˈflʌtɚ/ verb
flutters; fluttered; fluttering
1 flutter
/ˈflʌtɚ/
verb
flutters; fluttered; fluttering
Britannica Dictionary definition of FLUTTER
1 
of a bird or insect
a  : to move or flap the wings quickly without flying
[+ object]
[no object]
b  [no object] : to fly lightly with quick beats of the wings
2 
: to move with quick, light movements
[no object]
[+ object]
3 
[no object] : to move or behave in a nervous and excited way
◊ If your heart/stomach flutters, you become very nervous or excited.
2 flutter /ˈflʌtɚ/ noun
plural flutters
2 flutter
/ˈflʌtɚ/
noun
plural flutters
Britannica Dictionary definition of FLUTTER
1 
[count] : a quick, light movement
2 
[singular] : a state of excitement or confusion
3 
[count] British, informal : a small bet
4 
[noncount] technical : quick changes in the pitch of recorded sound