"Lead on McDuff"

Posted by Danny on December 18, 1999

In Shakspear's MacBeth, "Lay on MacDuff..." is a provocation to a fight. Is this popular phrase "Lead on McDuff" just a missquote and missuse of Shakespear, or was there really some popular "leader" named McDuff?

• Macduff, the Thane of Fife Bruce Kahl 12/19/99