Classic Hip Hop, Music Review Kool G Rap ft. Nas – Fast Life [Video] September 19, 2011 / On Kool G Rap’s earlier album “The Giancana Story”, he stated that the “G” in his name stands for “Giancana” (after the mobster Sam Giancana), but on other occasions he’s stated that it stands for “Genius”…I agree. Posted By @LisaFordBlog