look up any word, like cleveland steamer:
 
1.
negrosity is how black someone is. lance lemon is low on the negrosity level, however treyvon is very high because he constantly sports retro sports gear (with matching hat), is dark as night, and could beat the crap out of any1 in our school besides maybe brandon pinson
my negrosity level when i rap goes down, because i'm extremely white and it just sounds flat out gay
by c-dav May 19, 2004
 
2.
Negosity is basicly how black you are.
Shanaynay's negrosity befuddled me.
by Mouchaachaa September 06, 2005
 
3.
Negrosity is a term used to describe how black someone or something is. Once someone's Negrosity Levels rise to a certain level they may often start to radiate Negrotism.
Johnny smoked a Jeffrey and his Negrosity levels instantly rose so high that he started to radiate Negrotism.
by N8RZ December 08, 2010
 
4.
A monstrous negro (as in monstrosity plus negro).
Shit dude, Rudolph Giuliani is one hardcore Negrosity.
by Rudolph Giuliani April 28, 2007