A grimy Greek who has no respect and acts like a scumbag and makes other Greeks look bad. Often times he will bring shame, hatred and disgust onto his own people and is rejected by other Greeks and labeled a "Greek Nigga." Also, they have poor manners and social skills and answer telephones by saying speak, or run your mouth, just showing their ignorance as a "Greek Nigga"
for example: after a loss in a game of madden
Demitri: yo man you always stay cheatin you're garbage asshole
Keith: Calm down greek nigga you're acting like a little kid