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A feeling that after you've had a large meal you get a feeling of wanting to go to sleep usually black people get this sympton.
Tyrone- "Damn yo I just ate mad soulfood, now I want to go to sleep."

Uncle June Bug- "Of course nigga you got that syndrome niggarosis."
by Brick City Baby Nisha April 23, 2006
A tired feeling after eating a large amount of food. Usually associated with black people.
"Dang I just ate mad food, I'm tired as hell now. I must be suffering from niggerosis."
by Tae Tae January 26, 2004