It is a black dinosaur that roams the earth today in search of its prey. Today, it is used along with the word shidiot to lower an individuals self esteem. It is not racist by any means. It just adds emphasis to an already demeaning term.
Negrotism is a type of "blackness" or invisible "black matter" that radiates off of someone with a high level of Negrosity. This is often seen when someone smokes weed or a combination of other drugs (such as a Jeffrey). Negrotism may be radiated from a subject whether they are of black decent or not, as long as the Negrosity levels are high enough. Negrotism can sometime be absorbed from an outside source such as another subject radiating Negrotism. Negrotism can be more easily absorbed if the subject consumes more cornbread, grape drink, fried chicken, corn, and even mashed potatoes to an extent.
Nate smoked so much of that reallyballin' weed that he started to radiate Negrotism.
(noun) A person of uninspired intellect and unimpressive accomplishments appointed to a position of power because of his connections. A negro who's got the hook up, yo. First used to describe John Negroponte, first ever Director of National Intelligence and American UN ambassador.