Source : Webster's Revised Unabridged Dictionary (1913)

Burg \Burg\, n. [AS. burh, burg, cf. LL. burgus. See 1st
   {Borough}.]
   1. A fortified town. [Obs.]

   2. A borough. [Eng.] See 1st {Borough}.

Source : WordNet®

burg
     n : colloquial American term for a town; "I've lived in this
         burg all my life"