the mother of a man's child when the parents are not married - Source: Urban Dictionary
Then, the story:
An alert reader wrote in just a little while ago to let us know about something he'd spotted on Fox News Wednesday afternoon. During a segment discussing conservative attacks against Michelle Obama, the wife of presumptive Democratic nominee Barack Obama, the network described the former as "Obama's baby mama." - Source: Salon
Just to make sure I have this right: Fox news commentators are saying that Michelle Obama is not actually married to Barack Obama, and that they're children are born out of wedlock. Why on earth would you even think such a thing? Oh, that's right - they're black - isn't that what Fox believes "those people" do?
(sigh) Anyone want to start a betting pool until Fox just lays down the N word and is finally done with it?