Source : Webster's Revised Unabridged Dictionary (1913)

Bubble \Bub"ble\, v. i. [imp. & p. p. {Bubbled}; p. pr. & vb. n.
   {Bubbling}.] [Cf. D. bobbelen, Dan. boble. See {Bubble}, n.]
   1. To rise in bubbles, as liquids when boiling or agitated;
      to contain bubbles.

            The milk that bubbled in the pail.    --Tennyson.

   2. To run with a gurgling noise, as if forming bubbles; as, a
      bubbling stream. --Pope.

   3. To sing with a gurgling or warbling sound.

            At mine ear Bubbled the nightingale and heeded not.
                                                  --Tennyson.

Source : WordNet®

bubbling
     adj 1: emitting or filled with bubbles as from carbonation or
            fermentation; "bubbling champagne"; "foamy (or frothy)
            beer" [syn: {bubbly}, {foaming}, {foamy}, {frothy}, {effervescing}]
     2: marked by high spirits or excitement; "his fertile
        effervescent mind"; "scintillating personality";
        "sparkling conversation"; "a row of sparkly cheerleaders"
        [syn: {effervescent}, {scintillating}, {sparkling}, {sparkly}]
     3: covered with or resembling small bubbles as from being
        agitated by beating or heating; "the bubbling candy
        mixture"; "a cup of foaming cocoa"; "frothy milkshakes";
        "frothy waves"; "spumy surf" [syn: {foaming}, {foamy}, {frothing},
         {spumous}, {spumy}, {sudsy}]