Source : Webster's Revised Unabridged Dictionary (1913)

Goer \Go"er\, n. [From Go.]
   One who, or that which, goes; a runner or walker; as:
   (a) A foot. [Obs.] --Chapman.
   (b) A horse, considered in reference to his gait; as, a good
       goer; a safe goer.

             This antechamber has been filled with comers and
             goers.                               --Macaulay.

Source : WordNet®

goer
     n : someone who leaves [syn: {departer}, {leaver}]