Crack"a*jack` (?), n. 1. An individual of marked ability or excellence, esp. in some sport; as, he is a crackajack at tennis. [Slang]

2. A preparation of popped corn, candied and pressed into small cakes. [U. S.]

Crack"a*jack`, a. Of marked ability or excellence. [Slang]

Crack"a*jack` (?), n. 1. An individual of marked ability or excellence, esp. in some sport; as, he is a crackajack at tennis. [Slang]

2. A preparation of popped corn, candied and pressed into small cakes. [U. S.]

Crack"a*jack`, a. Of marked ability or excellence. [Slang]