The same as "pikey".

A) A derogatory slang term to mean any type of gypsy, synonymous to "gypo". (This is the original meaning, though it is now far less common).

B) A member of society that is BELOW WORKING CLASS as they usually live by benefits, in council housing and do not hold employment. One of many localised terms for the same people that has now become popularly labelled as "chavs". They are the absolute dregs of modern society; they contribute nothing and take as much as they can. It is a common misconception that all working class are pikies, this is not the case.
These are usually the descendants of gypsies, so there are many similarities between the 2 definitions, including jewellery such as large medallions, sovereign rings and large hoop earrings; as well as disregard for the law of the land, overwhelming cowardice and lack of any form of morality.
Synonyms include, "townie" (modern meaning), "chav", "scally", "NED", etc. For a detailed description, research any of these terms.

NB.
"Travellers", i.e. people who chose to live in caravans to avoid paying tax may or may not be covered by definition (A), but this is rarely an issue as they are usually covered by definition (B).

The antonym to "townie" (traditional meaning; anyone who lives in an urban/suburban location) is "bumpkin" (anyone who lives in a rural environment), not "pikie".
Pikies have moved into the neighbourhood, there's horse crap everywhere

Some pikie started on me the other day; all bark, no bite, that lot, bloody dolescum cowards.
by KX36 November 2, 2006
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A more violent strain of chav.

Fond of ending sentences with Blud, or Bruv and occasionally Brer.
by !!JESUS!! November 8, 2005
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A synonym for the word 'photograph', 'picture' or 'photo'.
Cool kids use this word on a regular basis.
Hey, get closer together so we can all fit in this piki.

Look at that car! Take a piki!
by JONNN! January 8, 2011
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a term used for a common, unfashionable looking youth, usually wearing unsurpassable amounts of gold jewellery and reebok 'classics'. Will loiter on public roads and outside kebab shops way passed bedtime. Will wreak havoc for no apparent reason i.e smashing shop windows and graffiti-ing. Usually live on/near council estates or in mobile homes
Don't leave your car there, pikies will jack it.
by Treatz June 6, 2003
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Thief. Person who sits on benches all day long normally wearing large plates/medalions round the necks. Often speak in a high pitch wale. Starts on everyone.
by KwAzO June 1, 2003
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In Suffolk, a term townies use to try and insults us people who listen to decent, music like rock, metal and punk. But really, in all other parts of England, Pikie is a term for a school drop-out, drug dealin, 9 year old raping townie twat. Doesnt that show how dumb they are/
Townie 1:- Oi, He's a Pikie, knife him son.
Pikie:- Yes, I'm an Irish Gypsy, thats why we live in mansions and you live on council estates. SO run back to your mamma you prebuscent gerbil-like townie.
by Punty Wunty January 2, 2004
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retarded townies who attempt to insult you by saying 'ya mum' and 'stupid grebo'. they drive around in there 'phat' novas or renault 5's. i have also noticed how all there girlfriends are always atleast 4 years younger than themsleves and hence why they like hanging around middle and high schools.
oy watch it ya stoopid greebo ile nife ya cus im a wel phat pikie innni
by seb December 7, 2003
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