1. People who affect ghetto
manners, clothing, and speech to such a degree that their speech and methods of expression are incomprehensible to the average person. 2. Affecting ghetto culture to the point that it looks, and sounds, ridiculous.
"I told the wigger
with the grill
in his mouth, 'Quit being a ghettotard!'"
2. Rich people (esp. teenagers) who adopt ghetto culture as a way to prove their toughness or coolness, or actually believe their lives have anything in common with the ghetto.
A ghettotard would put fake bullet hole stickers on their brand new audi. A ghettotard enjoys kicking back in the grocery parking lot, blasting rap music from their audi (with the fake bullet holes), wearing pre-torn clothing, and a drinking a Starbucks, while complaining to their friends that their life is so hard.