Source : Webster's Revised Unabridged Dictionary (1913)

Scrappy \Scrap"py\, a.
   Consisting of scraps; fragmentary; lacking unity or
   consistency; as, a scrappy lecture.

         A dreadfully scrappy dinner.             --Thackeray.

Source : WordNet®

scrappy
     adj : full of fighting spirit; "a scrappy admiral"
     [also: {scrappiest}, {scrappier}]