The Collaborative International Dictionary of English v.0.48:

Sous \Sous\, Souse \Souse\ (F. s[=oo]; colloq. Eng. sous), n.
   A corrupt form of Sou. [Obs.] --Colman, the Elder.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, n. [OF. sausse. See Sauce.] [Written also
   souce, sowce, and sowse.]
   1. Pickle made with salt.
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   2. Something kept or steeped in pickle; esp., the pickled
      ears, feet, etc., of swine.
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            And he that can rear up a pig in his house,
            Hath cheaper his bacon, and sweeter his souse.
                                                  --Tusser.
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   3. The ear; especially, a hog's ear. [Prov. Eng.]
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   4. The act of sousing; a plunging into water.
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The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, n.
   A drunkard. [slang]
   [PJC]

The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, v. t. [imp. & p. p. Soused; p. pr. & vb. n.
   Sousing.] [Cf. F. saucer to wet with sauce. See Souse
   pickle.]
   1. To steep in pickle; to pickle. "A soused gurnet." --Shak.
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   2. To plunge or immerse in water or any liquid.
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            They soused me over head and ears in water.
                                                  --Addison.
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   3. To drench, as by an immersion; to wet throughly.
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            Although I be well soused in this shower.
                                                  --Gascoigne.
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The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, adv.
   With a sudden swoop; violently. --Young.
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The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, v. i. [Probably fr. OF. sors, p. p. of sordre to
   rise, and first used of an upward swood, then of a swoop in
   general, but also confused with Souse, v. t. See Source.]
   To swoop or plunge, as a bird upon its prey; to fall
   suddenly; to rush with speed; to make a sudden attack.
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         For then I viewed his plunge and souse
         Into the foamy main.                     --Marston.
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         Jove's bird will souse upon the timorous hare. --J.
                                                  Dryden. Jr.
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The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, v. t.
   To pounce upon. [R.]
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         [The gallant monarch] like eagle o'er his serie towers,
         To souse annoyance that comes near his nest. --Shak.
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The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, n.
   The act of sousing, or swooping.
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         As a falcon fair
         That once hath failed or her souse full near.
                                                  --Spenser.
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WordNet (r) 3.0 (2006):

souse
    n 1: a person who drinks alcohol to excess habitually [syn:
         alcoholic, alky, dipsomaniac, boozer, lush,
         soaker, souse]
    2: pork trimmings chopped and pickled and jelled
    3: the act of making something completely wet; "he gave it a
       good drenching" [syn: drenching, soaking, souse,
       sousing]
    v 1: cover with liquid; pour liquid onto; "souse water on his
         hot face" [syn: drench, douse, dowse, soak, sop,
         souse]
    2: immerse briefly into a liquid so as to wet, coat, or
       saturate; "dip the garment into the cleaning solution"; "dip
       the brush into the paint" [syn: dunk, dip, souse,
       plunge, douse]
    3: become drunk or drink excessively [syn: souse, soak,
       inebriate, hit it up]
    4: cook in a marinade; "souse herring"