Definitions Found:
a person or thing that shows marked ability or excellence.
- crackerjacka person or thing that shows marked ability or excellence.
- bellwethera person or thing that shows the existence or direction of a trend.
- individualityThe quality or character of a particular person or thing that distinguishes them from others of the same kind, esp. when strongly marked
- crackerjacka person or thing of marked excellence also CRACKAJACK
- crackerjacksCRACKERJACK, a person or thing of marked excellence also CRACKAJACK