The Collaborative International Dictionary of English v.0.48:

Snatch \Snatch\, v. t. [imp. & p. p. Snatched; p. pr. & vb. n.
   Snatching.] [OE. snachen, snechen; akin to D. snakken to
   gasp, to long (for), to desire. Cf. Snack, n., Sneck.]
   1. To take or seize hastily, abruptly, or without permission
      or ceremony; as, to snatch a loaf or a kiss.
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            When half our knowledge we must snatch, not take.
                                                  --Pope.
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   2. To seize and transport away; to rap. "Snatch me to
      heaven." --Thomson.
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   Syn: To twitch; pluck; grab; catch; grasp; gripe.
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The Collaborative International Dictionary of English v.0.48:

Snatch \Snatch\, v. i.
   To attempt to seize something suddenly; to catch; -- often
   with at; as, to snatch at a rope.
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The Collaborative International Dictionary of English v.0.48:

Snatch \Snatch\, n.
   1. A hasty catching or seizing; a grab; a catching at, or
      attempt to seize, suddenly.
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   2. A short period of vigorous action; as, a snatch at weeding
      after a shower. --Tusser.
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            They move by fits and snatches.       --Bp. Wilkins.
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   3. A small piece, fragment, or quantity; a broken part; a
      scrap.
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            We have often little snatches of sunshine.
                                                  --Spectator.
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            Leave me your snatches, and yield me a direct
            answer.                               --Shak.
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WordNet (r) 3.0 (2006):

snatch
    n 1: a small fragment; "overheard snatches of their
         conversation" [syn: snatch, bit]
    2: obscene terms for female genitals [syn: cunt, puss,
       pussy, slit, snatch, twat]
    3: (law) the unlawful act of capturing and carrying away a
       person against their will and holding them in false
       imprisonment [syn: kidnapping, snatch]
    4: a weightlift in which the barbell is lifted overhead in one
       rapid motion
    5: the act of catching an object with the hands; "Mays made the
       catch with his back to the plate"; "he made a grab for the
       ball before it landed"; "Martin's snatch at the bridle failed
       and the horse raced away"; "the infielder's snap and throw
       was a single motion" [syn: catch, grab, snatch, snap]
    v 1: to grasp hastily or eagerly; "Before I could stop him the
         dog snatched the ham bone" [syn: snatch, snatch up,
         snap]
    2: to make grasping motions; "the cat snatched at the
       butterflies"
    3: take away to an undisclosed location against their will and
       usually in order to extract a ransom; "The industrialist's
       son was kidnapped" [syn: kidnap, nobble, abduct,
       snatch]