An uned is short for an uneducated person. Usually somebody with no qualifications who lives in a council area, and is dependant on benefits. Most chavers are uneds, as they have no education. Uneds are often seen around streets drinking and in chaver cars.
God did you see that woman on trishia, she was an uned.
Last night an uned on wheels, beeped his horn at me, and stuck his fingers up, yelling fuck off, at the top of his voice.