Kind of the same as necrosis, only your skin turns black, your lips get big, and you have a sudden craving for chicken and watermelon... only it still rots you from the inside.
A mental disorder characterized by having irresistible tendencies towards unreasonable violence, irrational and low-intellect thought, stealing, and raping.
"Yeah, my friend was suffering from Negrosis so he became a dumbass and decided to steal someone's bike for no apparent reason"
Black person: Waddup nigguuuuuuuh?
White person: Yo. Waddup my nigguh?
Black person: What the fuck did you just call me?
White person: Yo man. That's reverse negrosis.