The Collaborative International Dictionary of English v.0.48:

Carl \Carl\, n. [Icel, karl a male, a man; akin to AS. ceorl,
   OHG. charal, G. kerl fellow. See Churl.] [Written also
   carle.]
   1. A rude, rustic man; a churl.
      [1913 Webster]

            The miller was a stout carl.          --Chaucer.
      [1913 Webster]

   2. Large stalks of hemp which bear the seed; -- called also
      carl hemp.
      [1913 Webster]

   3. pl. A kind of food. See citation, below.
      [1913 Webster]

            Caring or carl are gray steeped in water and fried
            the next day in butter or fat. They are eaten on the
            second Sunday before Easter, formerly called Carl
            Sunday.                               --Robinson's
                                                  Whitby
                                                  Glossary
                                                  (1875).
      [1913 Webster]