1. [n]  major food fish of arctic and cold-temperate waters
2. [n]  lean white flesh of important North Atlantic food fish; usually baked or poached
3. [n]  the vessel that contains the seeds of a plant (not the seeds themselves)
4. [adv]  collecting the charges upon delivery; "mail a package C.O.D."
5. [adj]  payment due by the recipient on delivery; "a collect call"; "the letter came collect"; "a COD parcel"
6. [v]  harass with persistent criticism or carping; "The children teased the new teacher"; "Don't ride me so hard over my failure"; "His fellow workers razzed him when he wore a jacket and tie"
7. [v]  fool or hoax; "The immigrant was duped because he trusted everyone"; "You can't fool me!"

Cod
Winner of the Best Writing on Food Award from the James Beard Foundation in 1998.

more details ...

1. \Cod\ (k[o^]d), n. [AS. codd small bag; akin to Icel. koddi
   pillow, Sw. kudde cushion; cf. W. cod, cwd, bag, shell.]
   1. A husk; a pod; as, a peascod. [Eng.] --Mortimer.
   2. A small bag or pouch. [Obs.] --Halliwell.
   3. The scrotum. --Dunglison.
   4. A pillow or cushion. [Prov. Eng.] --Halliwell.
   

2. \Cod\, n. [Cf. G. gadde, and (in Heligoland) gadden, L.
   gadus merlangus.] (Zo["o]l.)
   An important edible fish ({Gadus morrhua}), taken in immense
   numbers on the northern coasts of Europe and America. It is
   especially abundant and large on the Grand Bank of
   Newfoundland. It is salted and dried in large quantities.
   Note: There are several varieties; as {shore cod}, from
         shallow water; {bank cod}, from the distant banks; and
         {rock cod}, which is found among ledges, and is often
         dark brown or mottled with red. The {tomcod} is a
         distinct species of small size. The {bastard}, {blue},
         {buffalo}, or {cultus cod} of the Pacific coast belongs
         to a distinct family. See {Buffalo cod}, under
         {Buffalo}.
   {Cod fishery}, the business of fishing for cod.
   {Cod line}, an eighteen-thread line used in catching codfish.
      --McElrath.