The Collaborative International Dictionary of English v.0.48:

Disgorgement \Dis*gorge"ment\, n. [Cf. F. d['e]gorgement.]
   The act of disgorging; a vomiting; that which is disgorged.
   --Bp. Hall.
   [1913 Webster]

WordNet (r) 3.0 (2006):

disgorgement
    n 1: the reflex act of ejecting the contents of the stomach
         through the mouth [syn: vomit, vomiting, emesis,
         regurgitation, disgorgement, puking]

Moby Thesaurus II by Grady Ward, 1.0:

27 Moby Thesaurus words for "disgorgement":
   barf, blowout, discharge, egesta, egestion, ejaculation, emission,
   eructation, eruption, expulsion, extravasation, gagging, heaves,
   heaving, jet, nausea, outburst, outpour, puke, regurgitation, spew,
   spout, spurt, squirt, vomit, vomiting, vomition