A nickname derived from the "Transformers" main character "Optimus Prime"; describes a friend who transforms and commits an act in which a ghetto-living African-American would typically commit, who is surviving in the struggle of life, made through poor logic and bad decision making.
CJ: (transforms into Blackulous Prime, drinks from your milk jug in the fridge, puts it back inside, then transforms back to your friend.)

Salvatore: "Yo Blackulous Prime, you seriously just drank straight outta my milk jug like that?"

CJ: "I didn't wanna dirty any of your disposable cups."
by Salvatore007 October 23, 2011

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