Similar to a 'mental retardation', however, characterized by overuse of hip hop terms and showing little hope for in-depth cognitive function.
Caucasian blacktard: "Yo, I did fail dat math test but itz all good cause datz how I roll. lol"
Asian blacktard: "Fo real, these 22" rims will fit on my civic, playa, don't hate."
Grandpa: You can tell me about the concert without sounding like such a blacktard.