A two part argument wherein the first part is a nod to the high road followed by the second part wherein the speaker reveals their real argument rooted in ignorance. Common argument style seen on FOX news.
Example: “Of course the Islamic Cultural Centre has a right to be located near ground zero however they aren’t being very sensitive to how people feel (Read: not being sensitive to speaker’s bigotry). That's a duplex argument.
by FightBigotry September 09, 2010