Source : Webster's Revised Unabridged Dictionary (1913)

Reveler \Rev"el*er\, n. [Written also reveller.]
   One who revels. ``Moonshine revelers.'' --Shak.

Source : WordNet®

reveler
     n : a celebrant who shares in a noisy party; "the clubs attract
         revelers as young as thirteen" [syn: {reveller}, {merrymaker}]