Dar·by and Joan /ˌdɑːbi ən ˈdʒəʊn $ ˌdɑːrbi ən ˈdʒoʊn/
noun British English[
Date: 1700-1800;
Origin: The names of a happy long-married couple in an 18th-century poem]
like Darby and Joan used humorously when talking about an old husband and wife who live very happily together
[TahlilGaran] Dictionary of Contemporary English ▲