Basically the whole population of Kempsey, N.S.W Australia
Short for Derelict.
People who roam around wearing moccasins, thongs, pajama's, underwear and skanky looking clothing.
People who look and ARE poor, living in homes shared with rats and cockroaches and various other things.
Most of the time, you'll see them wandering down the streets at all hours of the night and early morning in Lavington, New South Wales Australia (otherwise known as 'Stabbington').
You'll see a lot of Dero's inside shopping centers such as 'Big W' or 'Kmart', often hanging around the food courts like scabby little creatures.
A lot of Dero's go to James Fallon High School and Murray High School as the area that these schools are located in are absolutely distraught looking areas in dire need of repair as the people whom occupy these homes are on the dole and cannot take care of themselves.
On a side note, most dero's take offence to being called so. If you ever come across these things, never approach them, they might get their cousins or uncles on you if you just so happen to wrong them in any sort of way.
A dero can be described as someone who lacks hygiene… a life, friends, sometimes even a home. They often smell, due to the lack of hygiene. Then you get people that want to be deros, they listen to punk, or heavy metal music, wear black make-up, but can’t afford deodorant.