derro 

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

"Look at those derros on the street corner"

derro by dereleet September 20, 2004

derro 

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

*emo kid walks past*
Derro: Haii brahh, check out dat stupid fkn emo. Get im manh
Emo: Fuck off you derro loser. Go smoke some heroine
Derro: Yo brah what you say? Say dat to my face beetch. You wana start me ey?

derro by altkid April 4, 2009

derro 

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

"What a derro he's turned out to be. He's passed out by the rubbish bin"

" dead set "

derro by herbie August 17, 2004

derro 

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.

normal person points at gang of derelict bogans: "yo check out that bunch of derros over there"

derros: "Can u please buy us alcohol?"
normal person: "ahhhhhhh... no"

derro by atticus123456789 November 1, 2010

Derro Gerro 

Slang for the population of Geraldton, a city north of Perth. The people are generally extremely unreasonable, irritatating and rowdy.
They also drive stupid trucks.

Guy 1 : Why was that guy such a retard?
Guy 2 : He was obviously derro gerro.

Derro Gerro by roopoogoo July 25, 2011

a derro 

someone who dresses like they are poor, even though they arent

"Oi Ned, check out that derro in those soleless tennis shoes"

a derro by treearms April 12, 2006

Defrost Cycle

See Heat Pump. Also called "defrosting" and "going into a defrost."

When it gets below about 45 degrees, a heat pump running in HEAT mode may develop ice or frost on the coils. There are exceptions to the rule, however, as I have seen heat pumps defrost when it is abve 45 degrees and even in the 50s! If it gets frozen enough, it may have to defrost. A defrost cycle is initiated by the the reversing valve switching the flow of Freon and putting the unit in COOL mode. However, unlike when the unit is running in COOL mode on a hot day, the fan blades in outdoor unit are not spinning, and the system typically has its electric, gas, or oil backup heat running to prevent the heat pump from effectively air-conditioning the house while it is defrosting. Sometimes, depending on a number of factors, a steam or fog may appear above the heat pump (see Steam Show). A defrost cycle can last anywhere from less than a minute to ten minutes or more depending on a number of factors, including outdoor temperature, ice/frost buildup on the outdoor coils, whether or not it is raining or snowing, and what temperature the thermostat is set at.

The first time I saw a defrost cycle at my new house, I thought my heat pump wa broken and about to explode!

My heat pump is located right outside the master bedroom window, and it woke me up this morning when it went into defrost.

I was playing with my dog in the backyard on a chilly winter day, when my heat pump went into defrost and scared her so much that she started barking at it.

Defrost Cycle by AutoHVACNut March 15, 2012