Source : Webster's Revised Unabridged Dictionary (1913)

Gush \Gush\, v. t.
   1. A sudden and violent issue of a fluid from an inclosed
      plase; an emission of a liquid in a large quantity, and
      with force; the fluid thus emitted; a rapid outpouring of
      anything; as, a gush of song from a bird.

            The gush of springs, An fall of lofty foundains.
                                                  --Byron.

   2. A sentimental exhibition of affection or enthusiasm, etc.;
      effusive display of sentiment. [Collog.]

Gush \Gush\, v. i. [imp. & p. p. {Gushed}; p. pr. & vb. n.
   {Gushing}.] [OE. guschen, cf. Icel. gusa and gjsa, also D.
   gucsen; perh. akin to AS. ge['o]tan to pour, G. giessen,
   Goth. giutan, E. gut. Cf. {Found} to cast.]
   1. To issue with violence and rapidity, as a fluid; to rush
      forth as a fluid from confinement; to flow copiously.

            He smote the rock that the waters gushed out. --Ps
                                                  ixxviii 20.

            A sea of blood gushed from the gaping wound.
                                                  --Spenser.

   2. To make a sentimental or untimely exhibition of affection;
      to display enthusiasm in a silly, demonstrative manner.
      [Colloq.]

Source : WordNet®

gush
     n 1: a sudden rapid flow (as of water); "he heard the flush of a
          toilet"; "there was a little gush of blood"; "she
          attacked him with an outpouring of words" [syn: {flush},
           {outpouring}]
     2: an unrestrained expression of emotion [syn: {effusion}, {outburst},
         {blowup}, {ebullition}]
     v 1: gush forth in a sudden stream or jet; "water gushed forth"
          [syn: {spurt}, {spirt}, {spout}]
     2: praise enthusiastically; "She raved about that new
        restaurant" [syn: {rave}]
     3: issue in a jet; come out in a jet; stream or spring forth;
        "Water jetted forth"; "flames were jetting out of the
        building" [syn: {jet}]