adjective. Of excellent quality or ability; fine.

noun. See crackajack.

noun. An individual of marked ability or excellence, esp. in some sport.

noun. A preparation of popped corn, candied and pressed into small cakes. The name Cracker Jack(TM) is now a trademark for a similar confection.

noun. something excellent of its kind.

adjective. Of marked ability or excellence.

adjective. Exceptionally fine or excellent; top-notch; high quality.

adjective. Expert, top-rated or high-performing.

adjective. Referring to clothing items (pants, jersey, collar) that comprise the traditional blue uniform of the enlisted men of the US Navy, following the sailor uniform worn by Sailor Jack on boxes of Cracker Jack snacks.

noun. An exceptionally fine or excellent thing or person.

noun. An expert or top-rated individual (e.g., a marksman)

noun. The traditional blue uniforms of the enlisted men of the US Navy.

noun. A sailor.

noun. someone excellent of their kind

noun. something excellent of its kind

"Some of these doctors are buying their degrees or getting them in crackerjack boxes, plus all the insourced doctors with degrees from high schools all over the world. seebofubar"