The Collaborative International Dictionary of English v.0.48:

Chop \Chop\, n. [Chin. & Hind. ch[=a]p stamp, brand.]
   [1913 Webster]
   1. Quality; brand; as, silk of the first chop.
      [1913 Webster]

   2. A permit or clearance.
      [1913 Webster]

   Chop dollar, a silver dollar stamped to attest its purity.


   chop of tea, a number of boxes of the same make and quality
      of leaf.

   Chowchow chop. See under Chowchow.

   Grand chop, a ship's port clearance. --S. W. Williams.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

chow-chow \chow-chow\ (chou"chou`), n.
   1. chopped pickles in mustard sauce.

   Syn: chowchow.
        [WordNet 1.5]

   2. a Chinese preserve of mixed fruits and ginger.

   Syn: chowchow.
        [WordNet 1.5]

   3. a breed of thick-coated medium-sized dogs with fluffy
      curled tails and distinctive blue-black tongues; believed
      to have originated in north China.

   Syn: chow, chow chow.
        [WordNet 1.5]

   Chowchow chop, the last lighter containing the small sundry
      packages sent off to fill up a ship. --S. W. Williams.
      [1913 Webster]