Definitions
1.nounA quaint and fanciful idea; a whim; playfully odd behaviour.
2.nounAn impulsive, illogical or capricious character.
3.nounA whim (capstan or vertical drum).
4.nounA jigsaw puzzle piece that has been cut into a recognizable shape, as if on a whim; often the shape is representative of the theme of the image used for the puzzle.