Source : Webster's Revised Unabridged Dictionary (1913)

Spawl \Spawl\, n.
   A splinter or fragment, as of wood or stone. See {Spall}.

Spawl \Spawl\, n. [Cf. AS. sp[=a]tl, fr. sp[=ae]tan to spit;
   probably akin to sp[=i]wan, E. spew. Cf. {Spew}.]
   Scattered or ejected spittle.

Spawl \Spawl\, v. i. & t. [imp. & p. p. {Spawled}; p. pr. & vb.
   n. {Spawling}.] [Cf. AS. sp[=a]tlian.]
   To scatter spittle from the mouth; to spit, as saliva.

         Why must he sputter, spawl, and slaver it In vain,
         against the people's favorite.           --Swift.

Source : WordNet®

spawl
     n : a fragment broken off from the edge or face of stone or ore
         and having at least one thin edge; "a truck bearing a
         mound of blue spalls" [syn: {spall}]