A black ass nigger who practices black magic and sorcery to tell the future. He is currently employed by Church's, KFC and Obama to help foresee the future of fried chicken products.
Theory coined by the prophet Afroman which claims to be the one, true method for selling crack to one's teacher. A close relative of trigonometry, but the similarities end at the rhyme unfortunately for us students.
"That's how you pass, trigonometry, sell crack to your teacher, use niggernometry" - Afroman, Bacc To School