A sought-after 'fish' in New England. It actually refers to the size of white fish and may be either cod or haddock. Scrod is the youngest, followed by markets, and cows, which, surprise surprise, are not so often seen on menus.
The story goes that a man was picked up by a cab at Logan Airport in Boston. On his way into town the passenger asked "Where can I go to get scrod?" The cabbie responded "I have been asked that question many times before, but never in the pluperfect subjunctive!" Pedantic as I am, I believe this to be the passive tense rather than the pluperfect subjunctive, but it doesn't make for such a good punch line.