Did Lieberman call Obama a "rapper"?

This interview aired on Sean Hannity's radio show about 3 weeks ago.  I thought it was interesting to note how ol' Joe, marcher for civil rights, framed Obama in his introductory remarks.

I figure if we have guys on our side that shape our language and consult on communications... well, they do too.  And I think this is probably just about perfect pitch if your trolling for certain votes.

It's maddening though because it is just plausible enough that this could be an innocent gaffe - or not even a gaffe.  In bringing it up, you risk blow-back for being touchy about race.

Anyway, I thought I'd flag it.  We'll see if this metaphor (or metaphors like it) comes up more frequently as the campaign heats up.

Also, I marvel at the sequence of Joe's rhetorical recipe. Shorter Joe (audio available here, my comments in square brackets).

When the Presidency is at stake, I'm less inclined to accept something as an accident.  Politics is about words; people are paid very well to craft them just right.  I wasn't parsing Joe's every word; instead I was listening to him speak and "(w)rapping" jumped out at me - I had to rewind the audio to catch the exact context.  If what I heard was "rapping" you can bet Hannity's racist audience heard the subtextual dog-whistle as well.

Your first impression of Obama is that he's cool.  This is someone you'd want to have a drink with...
[Inoculation:  You liked him, so what follows can't racist thing...  It's perfectly OK to have these doubts...]

But then you think: "Is cool good enough? He's gonna be President.. In charge of my security, taxes and life...
[Set the stage: amp up the fear...]

So you get nervous.  After all, you don't know him very well. Then things come out like the Wright issue...
[Yup - Jeremiah Wright again.  Someone must have said "Burn that image on the back of their retinas".  Seriously, Hannity has been playing those clips several times a show for months now.  Those clips are priceless for the lasting impression.  You saw/heard them 1000 times for a reason...]

[Whiplash inducing non sequitur]

Another thing:  Obama's speech is always the same...
[Lieberman is newly familiar with the concept of stump speeches?  Why does he bring this up]

"There's not much in it.  There's this '(w?)rapping' of change - bipartisan change that he's calling for, but there's not a lot of detail..."
[Obama the rapper.  Nice.]