What is "to blaze away"

Blaze \Blaze\, v. i. [imp. & p. p. Blazed; p. pr. & vb. n. Blazing.]

1. To shine with flame; to glow with flame; as, the fire blazes.

2. To send forth or reflect glowing or brilliant light; to show a blaze.

   And far and wide the icy summit blazed.
   --Wordsworth.

3. To be resplendent.
   --Macaulay.

   To blaze away, to discharge a firearm, or to continue firing; -- said esp. of a number of persons, as a line of soldiers. Also used (fig.) of speech or action. [Colloq.]