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?"

发自上周，如果你想用最新的俚语告诉你的朋友他很酷，你不妨叫他奥巴马，就像这样：嘿，你拿的是新上市的手机吗？