The Collaborative International Dictionary of English v.0.48:

Gurgle \Gur"gle\, n.
   The act of gurgling; a broken, bubbling noise. "Tinkling
   gurgles." --W. Thompson.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gurgle \Gur"gle\, v. i. [imp. & p. p. Gurgled;p. pr. & vb. n.
   Gurgling.] [Cf. It. gorgogliare to gargle, bubble up, fr.
   L. gurgulio gullet. Cf. Gargle, Gorge.]
   To run or flow in a broken, irregular, noisy current, as
   water from a bottle, or a small stream among pebbles or
   stones.
   [1913 Webster]

         Pure gurgling rills the lonely desert trace,
         And waste their music on the savage race. --Young.
   [1913 Webster]

WordNet (r) 3.0 (2006):

gurgle
    n 1: the bubbling sound of water flowing from a bottle with a
         narrow neck
    v 1: flow in an irregular current with a bubbling noise;
         "babbling brooks" [syn: ripple, babble, guggle,
         burble, bubble, gurgle]
    2: make sounds similar to gurgling water; "The baby gurgled with
       satisfaction when the mother tickled it"
    3: drink from a flask with a gurgling sound [syn: guggle,
       gurgle]
    4: utter with a gurgling sound; "`Help,' the stabbing victim
       gurgled"

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "gurgle":
   babble, babbling, blubber, boil, boil over, bubble, bubble over,
   bubble up, bubbling, burble, burbling, condense, distill, dribble,
   drip, dripple, drop, effervesce, ferment, filter, fizz, fizzle,
   guggle, gurgling, hiss, lap, leach, lixiviate, murmur, murmuring,
   percolate, plash, plashing, plop, purl, ripple, seep, seethe,
   simmer, slosh, sparkle, splash, splashing, spurtle, swash, sweat,
   swish, trickle, trill, wash, weep, work