LAST week, if you wanted to use the latest slang to tell a friend he was cool, you could have called him “Obama,” as in: “Dude, you’re rocking the new Pre phone? You are so Obama.” This week? Best not to risk it. The sudden shift in meaning has nothing to do with the fortunes of the president, regardless of what the health care debate may do to his cool factor. The fault rests entirely with what h
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