The Collaborative International Dictionary of English v.0.48:

Jug \Jug\, v. i. (Zool.)
   1. To utter a sound resembling this word, as certain birds
      do, especially the nightingale.
      [1913 Webster]

   2. To nestle or collect together in a covey; -- said of
      quails and partridges.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Jug \Jug\ (j[u^]g), n. [Prob. fr. Jug, a corruption of, or
   nickname for, Joanna; cf. 2d Jack, and Jill. See Johannes.]
   [1913 Webster]
   1. A vessel, usually of coarse earthenware, with a swelling
      belly and narrow mouth, and having a handle on one side.
      [1913 Webster]

   2. A pitcher; a ewer. [Eng.]
      [1913 Webster]

   3. A prison; a jail; a lockup. [Slang] --Gay.
      [1913 Webster]

   4. (pl.) A woman's breasts; as, nice jugs. [vulgar slang]
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Jug \Jug\ (j[u^]g), v. t. [imp. & p. p. Jugged (j[u^]gd); p.
   pr. & vb. n. Jugging (j[u^]g"g[i^]ng).]
   [1913 Webster]
   1. To seethe or stew, as in a jug or jar placed in boiling
      water; as, to jug a hare.
      [1913 Webster]

   2. To commit to jail; to imprison. [Slang]
      [1913 Webster]

WordNet (r) 3.0 (2006):

jug
    n 1: a large bottle with a narrow mouth
    2: the quantity contained in a jug [syn: jug, jugful]
    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, jug, gaol,
         put away, remand]
    2: stew in an earthenware jug; "jug the rabbit"

Moby Thesaurus II by Grady Ward, 1.0:

70 Moby Thesaurus words for "jug":
   adobe, bastille, biscuit, bisque, bowl, brick, calabash, calaboose,
   can, canteen, carafe, carboy, caster, cement, ceramic ware,
   ceramics, china, chokey, clink, confine, constrain, cooler, coop,
   crock, crockery, cruet, cruse, decanter, demijohn, enamelware,
   ewer, fifth, firebrick, flacon, flagon, flask, flasket, glass,
   gourd, hipflask, hoosegow, hot-water bottle, immure, incarcerate,
   jail, jar, jeroboam, lockup, lota, magnum, mussuk, olla, pen,
   phial, pokey, porcelain, pot, pottery, prison, quod, refractory,
   slammer, stir, stoup, tile, tiling, urn, vacuum bottle, vase,
   vial