The DICT Development Group

  Snack \Snack\, n. [See Snatch, v. t.]
     1. A share; a part or portion; -- obsolete, except in the
        colloquial phrase, to go snacks, i. e., to share.
        [1913 Webster]
  
              At last he whispers, "Do, and we go snacks." --Pope.
        [1913 Webster]
  
     2. A slight, hasty repast. [Colloq.]
        [1913 Webster]

  snack
      n 1: a light informal meal [syn: bite, collation, snack]
      v 1: eat a snack; eat lightly; "She never loses weight because
           she snacks between meals" [syn: nosh, snack]

  57 Moby Thesaurus words for "snack":
     bait, bit, bite, butt, chip, chunk, clip, clipping, collation,
     collop, crumb, cut, cutting, dollop, elevenses, end, fragment, gob,
     gobbet, hunk, light lunch, light meal, light repast, lump, modicum,
     moiety, morsel, nibble, nosh, paring, particle, peck, peck at,
     pick, pick at, piece, rasher, refreshment, refreshments, scoop,
     scrap, shard, shaving, shiver, shred, slice, sliver, smithereen,
     snatch, snip, snippet, splinter, spot of lunch, stitch, stump,
     tatter, tea