Barack Obama, college freshman, Occidental College, Los Angeles, 1980 |Lisa Jack/Getty Images|

I’m cool like dat.

I’m cool. I’m cool.

I’m chill like dat.

I’m peace like dat.

I roll like dat.

I jive like dat.

I’m down like dat.

I zoom like dat.

Well, yo, I funk like dat.

Chicago, 2008 |Photo credit Joe Raedle/Getty Images|

I’m smooth like dat.

I stack like dat.

I’m black like dat.

We Out.