English

Alternative forms

• crackajack, crack-a-jack, cracker-jack, cracker jack

Adjective

crackerjack ‎(comparative more crackerjack, superlative most crackerjack)

1. Exceptionally fine or excellent; top-notch; high quality.
2. Expert, top-rated or high-performing.
3. (US, slang) Referring to clothing items (pants, jersey, collar) that constitute 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

crackerjack ‎(plural crackerjacks)

1. An exceptionally fine or excellent thing or person.
2. An expert or top-rated individual (e.g., a marksman)
3. (US, slang, in the plural) The traditional blue uniforms of the enlisted men of the US Navy.
4. (US, slang) A sailor.
5. (US) popcorn candied and pressed into small cakes.
   • 1946, James T. Farrell, Bernard Clare (page 280)

     "Here, here's the popcorn man," Sid said as a vendor passed, pushing a cart. Sid bought a package of crackerjack and opened it while Mickey jumped up and down, unable to wait.

See also

• crackerjack on Wikipedia.Wikipedia