Medieval slang term for the the English longbow
, referring to the fact that it was really effective in getting rid of
those pesky knights in their full body armor
From the point of view of a longbow arrow, chainmail can be thought of as a series of loosely connected holes.
-- Terry Pratchett, don't remember which book. Lords and Ladies, perhaps?
Ok, so much for the joke on a misspelling of Knight Rider that most people will see here, but Knight Ridder is actually the name of a large publishing company that owns a lot of local newspapers in the USA. They are listed on the New York Stock Exchange as KRI.