n.
1.the act of moving back and forth
2.abnormally rapid beating of the auricles of the heart (especially in a regular rhythm)
3.a disorderly outburst or tumult
4.the motion made by flapping up and down flutter v.
1.move along rapidly and lightly
2.move back and forth very rapidly
3.beat rapidly
4.wink briefly
Idiom of the Day
leave (someone) flat
to fail to entertain or stimulate someone, to leave someone with no money
My attempt at making a joke left everyone in the room flat.