Steele uses the name Ruggles when he adopts the identity of a butler. The name comes from the 1915 novel Ruggles of Red Gap by Harry Leon Wilson, made into a movie in 1935 starring Charles Laughton as Ruggles the butler.
When making a sandwich Muldred refers to "a dagwood." The term refers to the long-running comic strip "Blondie," whose lead character Dagwood Bumstead made enormous sandwiches containing everything he found in the refrigerator.