So, it's a bit of East Coast African American slang.
As the Washington Post is not easily available out here, though the NY Times and WSJ are, it would have been nice it this link had been posted earlier.
I really can't believe how few people have heard this term used before. I'm looking at all these other definitions and thinking, "Umm, no". :Laugh I never knew where the term originated. It was just another colloquialism that a lot of folks used like "y'all".
It hasn't been widely used with the negative sense in Northern California.
Further, I have little to no contact with folks east of Reno, Nevada on a face to face basis.
My family has lived west of the Continental Divide for over a hundred years.
You seem to forget ... he is the golden "boy" and he does no wrong. Like Hillary, the public drool at the likes of him. Craning their necks for more of the same.
The whole notion of it being a racist term seems to come squarely from this Kevin Alexander Gray guy, on an old Jesse Jackson radio broadcast. I'm not able to find the whole context supposedly from Clinton, but it sounds like what was used on this site: http://www.theobamafile.com/_opinion/WhoSaysObamaSmart.htm "Obama's game is the old okie-dokie -- y'all know about okie dokie, right? -- he tries to bamboozle you -- hoodwink ya -- tries to hoodwink ya -- Alright!"
I don't know if that was a statement originally uttered by Clinton. But if so, that context might be why Gray would make the link to "shuckin' and jivin", though it's still an assumption based on the apparent thrust of the sentence (i.e. involving several words and the way it was written, not just that term).
In any case, since the specific term in question is not a racial term for either race, then Obama using it on Trump says nothing about any double standard or anything.