Australian slang, derived from the word 'derelict'. Means hobo, bum, no-hoper, poorly-dressed, unkept person.

Derro - australian slang for derelict, namely teenage kids you dress like trailer trash, start smoking and drinking when they're 11 and learn their abuse of narcotics from their drug dealer/alcoholic/government support relying parents. Often live in government housing or low budget, dodgy rep suburbs.
International equivalents : Chav, 'gangsta', Adelay, Lad

noun, Australian slang, ( derelict) U.S. equiv: Bum.

a word to describe someone who dresses in borrowed tracksuits, wears corey worthington glasses, says things like "shattered", is easily confused and much like a bogan.