Source : Webster's Revised Unabridged Dictionary (1913)

Scrimmage \Scrim"mage\ (?; 48), n. [A corruption of skirmish.
   ``Sore scrymmishe.'' --Ld. Berners.]] [Written also
   {scrummage}.]
   1. Formerly, a skirmish; now, a general row or confused fight
      or struggle.

   2. (Football) The struggle in the rush lines after the ball
      is put in play.

Source : WordNet®

scrimmage
     n 1: (American football) practice play between a football team's
          squads
     2: a noisy riotous fight [syn: {melee}, {battle royal}]
     v : practice playing (a sport)