crackerjack vs firstborn

crackerjack

adj
  • Exceptionally fine or excellent; top-notch; high quality. 

  • Expert, top-rated or high-performing. 

  • Referring to clothing items (pants, jersey, collar) that constitute the traditional blue uniform of the enlisted men of the US Navy. 

noun
  • A U.S. Navy sailor. 

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

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

  • An exceptionally fine or excellent thing or person. 

  • Popcorn candied in molasses-flavored caramel and peanuts. 

firstborn

adj
  • Most excellent; most distinguished or exalted. 

  • Born as the first one in a family, flock or the like. 

noun
  • The first child to be born to a parent or family. 

How often have the words crackerjack and firstborn occurred in a corpus of books? (source: Google Ngram Viewer )