"Chocolate City" is also the name of a children's foot stomping cheer that was performed in the 1980s. BTW: "Chocolate" is pronounced "Chock let".
Here's the words to the cheer that I collected from an African American Pittsburgh {PA} girl who said she got it from her DC cousin:
CHOCOLATE CITY Chock Let Chock Chock let City
Chock Let Chock Chock let City
All the boys in Chocolate City Get down to the nitty gritty Long time. No see. Sexy as I wanna be. Some hittin me high. some hittin me low. Some hittin me on my___ Don't ask what {What?} My B-U-T-T B-U -T- T B-U-T-T Butt that's what.
-snip-
And if you don't think that any of this has anything to do with the subject matter of this thread, well Jockomo fee na nay.