Source : Webster's Revised Unabridged Dictionary (1913)

Jug \Jug\, n. [Prob. fr. Jug, a corruption of, or nickname for,
   Joanna; cf. 2d Jack, and Jill. See {Johannes}.]
   1. A vessel, usually of coarse earthenware, with a swelling
      belly and narrow mouth, and having a handle on one side.

   2. A pitcher; a ewer. [Eng.]

   3. A prison; a jail; a lockup. [Slang] --Gay.

Jug \Jug\, v. t. [imp. & p. p. {Jugged}; p. pr. & vb. n.
   {Jugging}.]
   1. To seethe or stew, as in a jug or jar placed in boiling
      water; as, to jug a hare.

   2. To commit to jail; to imprison. [Slang]

Jug \Jug\, v. i. (Zo["o]l.)
   1. To utter a sound resembling this word, as certain birds
      do, especially the nightingale.

   2. To nestle or collect together in a covey; -- said of
      quails and partridges.

Source : WordNet®

jug
     n 1: a large bottle with a narrow mouth
     2: the quantity contained in a jug [syn: {jugful}]
     [also: {jugging}, {jugged}]

jug
     v 1: lock up or confine, in or as in a jail; "The suspects were
          imprisoned without trial"; "the murderer was
          incarcerated for the rest of his life" [syn: {imprison},
           {incarcerate}, {lag}, {immure}, {put behind bars}, {jail},
           {gaol}, {put away}, {remand}]
     2: stew in an earthenware jug; "jug the rabbit"
     [also: {jugging}, {jugged}]