Sir cool but he ain't spheres
Sir cool can be heards as circle, and as such, while the other rappers are good, they are shallow in their subject matter;they don’t have depth, like a three-dimensional sphere. “Ain’t spheres” can be heard as “Ain’t as fierce” implying that without a certain amount of complexity, or rather an extra dimension (2D vs. 3D), it is not possible to truly channel passion as is required.
It’s a reference to The Cool Saga, a Michael Young History (My Cool Young History). The Cool wanted to be cool, have Astons, Bitches, Cribs, Dollars, Erections, Fame, Guns and every other letter from alphabet.
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