Source : Webster's Revised Unabridged Dictionary (1913)

Self-indulgence \Self`-in*dul"gence\, n.
   Indulgence of one's appetites, desires, or inclinations; --
   the opposite of self-restraint, and self-denial.

Source : WordNet®

self-indulgence
     n 1: an inability to resist the gratification of whims and
          desires [syn: {indulgence}]
     2: immoderate indulgence of bodily appetites [syn: {intemperance},
         {intemperateness}]