Fat and loud black woman, age 25 to 35, at least 75 pounds overweight. She is outspoken, uneducated, arrogant and obnoxious. Typically festooned with hoop earrings and elaborately painted fake fingernails and branded with a ghetto tattoo. Often seen/heard loudly chatting with another buffalo on her cell phone, making brilliant statements like "You know I ain't tryin to hear that gurrrrrll!!!" as she waddle-struts along the sidewalk.
This buffalo is in front of you at the grocery store. She's paying for two carts of premium groceries with a federal voucher - and then whipping out a roll of cash to pay for the beer and candy that food stamps won't cover.