Source : Webster's Revised Unabridged Dictionary (1913)

Wallow \Wal"low\, v. t.
   To roll; esp., to roll in anything defiling or unclean.
   ``Wallow thyself in ashes.'' --Jer. vi. 26.

Wallow \Wal"low\, n.
   A kind of rolling walk.

         One taught the toss, and one the new French wallow.
                                                  --Dryden.

Wallow \Wal"low\, v. i. [imp. & p. p. {Wallowed}; p. pr. & vb.
   n. {Wallowing}.] [OE. walwen, AS. wealwian; akin to Goth.
   walwjan (in comp.) to roll, L. volvere; cf. Skr. val to turn.
   [root]147. Cf. {Voluble Well}, n.]
   1. To roll one's self about, as in mire; to tumble and roll
      about; to move lazily or heavily in any medium; to
      flounder; as, swine wallow in the mire.

            I may wallow in the lily beds.        --Shak.

   2. To live in filth or gross vice; to disport one's self in a
      beastly and unworthy manner.

            God sees a man wallowing in his native impurity.
                                                  --South.

   3. To wither; to fade. [Prov. Eng. & Scot.]

Wallow \Wal"low\, n.
   1. Act of wallowing.

   2. A place to which an animal comes to wallow; also, the
      depression in the ground made by its wallowing; as, a
      buffalo wallow.

Source : WordNet®

wallow
     n 1: a puddle where animals go to wallow
     2: an indolent or clumsy rolling about; "a good wallow in the
        water"
     v 1: devote oneself entirely to something; indulge in to an
          immoderate degree, usually with pleasure; "Wallow in
          luxury"; "wallow in your sorrows"
     2: roll around, "pigs were wallowing in the mud" [syn: {welter}]
     3: rise up as if in waves; "smoke billowed up nto the sky"
        [syn: {billow}]
     4: be ecstatic with joy [syn: {rejoice}, {triumph}]
     5: delight greatly in; "wallow in your success!"