The Collaborative International Dictionary of English v.0.48:

Dribble \Drib"ble\, v. i. [imp. & p. p. Dribbled; p. pr. & vb.
   n. Dribbing.] [Freq. of drib, which is a variant of drip.]
   1. To fall in drops or small drops, or in a quick succession
      of drops; as, water dribbles from the eaves.
      [1913 Webster]

   2. To slaver, as a child or an idiot; to drivel.
      [1913 Webster]

   3. To fall weakly and slowly. [Obs.] "The dribbling dart of
      love." --Shak. (Meas. for Meas., i. 3, 2). [Perhaps an
      error for dribbing.]
      [1913 Webster]

   4. In basketball, football and similar games, to dribble[2]
      the ball.
      [Webster 1913 Suppl.]

   5. To live or pass one's time in a trivial fashion.
      [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Dribble \Drib"ble\, v. t.
   1. To let fall in drops.
      [1913 Webster]

            Let the cook . . . dribble it all the way upstairs.
                                                  -- Swift.
      [1913 Webster]

   2. In basketball and various other games, to propel (the
      ball) by successive slight hits or kicks so as to keep it
      always in control.
      [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Dribble \Drib"ble\, n.
   1. A drizzling shower; a falling or leaking in drops.
      [Colloq.]
      [1913 Webster]

   2. An act of dribbling[2] a ball.
      [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

dribble
    n 1: flowing in drops; the formation and falling of drops of
         liquid; "there's a drip through the roof" [syn: drip,
         trickle, dribble]
    2: saliva spilling from the mouth [syn: drool, dribble,
       drivel, slobber]
    3: the propulsion of a ball by repeated taps or kicks [syn:
       dribble, dribbling]
    v 1: run or flow slowly, as in drops or in an unsteady stream;
         "water trickled onto the lawn from the broken hose";
         "reports began to dribble in" [syn: trickle, dribble,
         filter]
    2: let or cause to fall in drops; "dribble oil into the mixture"
       [syn: dribble, drip, drop]
    3: propel, "Carry the ball"; "dribble the ball" [syn: dribble,
       carry]
    4: let saliva drivel from the mouth; "The baby drooled" [syn:
       drivel, drool, slabber, slaver, slobber, dribble]

Moby Thesaurus II by Grady Ward, 1.0:

101 Moby Thesaurus words for "dribble":
   ace, atom, bit, condensation, condense, dab, distill, distillation,
   dole, dot, dram, driblet, drip, dripping, drippings, dripple,
   drivel, drool, drop, dwarf, expectorate, expectoration, farthing,
   filter, fleck, flyspeck, foam, fragment, froth, gobbet, grain,
   granule, groat, gurgle, hair, handful, hawk, iota, jot, leach,
   leaching, leak, leak out, leakage, leaking, little, little bit,
   lixiviate, lixiviation, minim, minimum, minutiae, mite, modicum,
   molecule, mote, mouth-watering, nutshell, ounce, particle, pebble,
   percolate, percolation, pinch, pittance, point, ptyalism, saliva,
   salivate, salivation, scrimption, scruple, seep, seepage, seeping,
   sialagogue, slabber, slaver, slobber, smidgen, smitch, speck, spew,
   spit, spittle, spoonful, spot, spurtle, sputum, sweat, sweating,
   thimbleful, tiny bit, tittle, trickle, tricklet, trifling amount,
   trill, trivia, weep, whit