Cod and Fool

cod

The vessel that contains the seeds of a plant (not the seeds themselves.
- synonyms: pod, seedcase
Lean white flesh of important North Atlantic food fish; usually baked or poached.
- synonyms: codfish
Major food fish of Arctic and cold-temperate waters.
- synonyms: codfish

Fool or hoax.
- usage: "The immigrant was duped because he trusted everyone"; "You can't fool me"
- synonyms: gull, dupe, slang, befool, fool, put on, take in, put one over, put one across
Harass with persistent criticism or carping.
- usage: "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"
- synonyms: tease, razz, rag, tantalize, tantalise, bait, taunt, twit, rally, ride

Payable by the recipient on delivery.
- usage: "a collect call"; "the letter came collect"; "a COD parcel"
- synonyms: collect

Collecting the charges upon delivery.
- usage: "mail a package C. O. D."
- synonyms: C. O. D., cash on delivery

(n.) The scrotum.
(n.) A small bag or pouch.
(n.) A husk; a pod; as, a peascod.
(n.) 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.
(n.) A pillow or cushion.

Webster's Revised Unabridged Dictionary

COD is Cash On Delivery; which is exactly what it means.

(Military) COD stands for one of the following: carrier onboard delivery; combat operations division

Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.

fool

A person who lacks good judgment.
- synonyms: sap, saphead, muggins, tomfool
A person who is gullible and easy to take advantage of.
- synonyms: chump, gull, mark, patsy, fall guy, sucker, soft touch, mug
A professional clown employed to entertain a king or nobleman in the Middle Ages.
- synonyms: jester, motley fool

Make a fool or dupe of.
- synonyms: gull, befool
Spend frivolously and unwisely.
- usage: "Fritter away one's inheritance"
- synonyms: fritter, frivol away, dissipate, shoot, fritter away, fool away
Fool or hoax.
- usage: "The immigrant was duped because he trusted everyone"; "You can't fool me"
- synonyms: gull, dupe, slang, befool, cod, put on, take in, put one over, put one across
Indulge in horseplay.
- usage: "Enough horsing around-let's get back to work"; "The bored children were fooling about"
- synonyms: horse around, arse around, fool around

(v.i.) To play the fool; to trifle; to toy; to spend time in idle sport or mirth.
(v.t.) To use as a fool; to deceive in a shameful or mortifying manner; to impose upon; to cheat by inspiring foolish confidence; as, to fool one out of his money.
(n.) A compound of gooseberries scalded and crushed, with cream; -- commonly called gooseberry fool.
(n.) A person deficient in intellect; one who acts absurdly or pursues a course contrary to the dictates of wisdom; one without judgment; a simpleton; a dolt.
(n.) One who acts contrary to moral and religious wisdom; a wicked person.
(n.) One destitute of reason or of the common powers of understanding; an idiot; a natural.
(n.) One who counterfeits folly; a professional jester or buffoon; a retainer formerly kept to make sport, dressed fantastically in motley, with ridiculous accouterments.
(v.t.) To infatuate; to make foolish.

Webster's Revised Unabridged Dictionary