D4 is an area in Dublin, called 'dublin 4' but abbreviated to suit the accent of people who live there. People called d4s generally never live in d4, they just like to think they do, and follow the d4 culture.
To be a 'd4' you have to wear streaky fake tan, have a completely orange face, have lips the same colour as your foundation, have really messy hair which is made to look like you just shoved it up though actually took you at LEAST twenty minutes to arrange, abercrombie hoodies, airtex tshirts with the collars up or the rugby jersey of your boyfriends school(preferably zaga), fat man pants or cantos, and dubes or uggs, topped off with a louis vuitton or juicy cotoure handbag.
To be a real d4 girl, you have to 'like' rugby, ie say you like it and go to rugby matches though not understand the rules at all. You only like it because the guys who play it have supposedly 'hott' bodies. If you are a d4 guy, playing rugby and being on the j's is a MUST.
You also must go to 'the Wezz', a pathetic under 15 disco beside Donnybrook rugby pitch. The only activities that go on there are slut dancing and 'scoring' people.
d4 person at rugby match:Omfg loik we loik SOOOOOOOOOO have to go to Wezz tonoiysh after the Junior Cup Final cos there'll be loadsa hot rugby players there omg yeah!!!
Omg I sooooooo don't get this game, they should put the instructions in the manual!!!*looks desperately through programme*
by anna!atthedisco March 28, 2006
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Short for Dublin 4, an upper middle class area in Dublin, Ireland, where a conrtived posh accent is often used by the most snobby of shitturds, it borrows from middle american and upper class UK accents aswell as french pseudo sophistocation.

People who speak with a d4 accent are deservadly ridiculed for their fake shallow gay accent which is put on to make them feel more important.

also see delusions of grandeur
on mobile fone
"Hi Dervla, how are youuu?? sheaaa?? oowoahoaoo thats fantaaaaastic....haa?? oh Fintin, yeah hes greeeeat, working hard ya-knaaewww.."
by womoma April 16, 2005
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a posh person usually their parents have little or no relationship with each other and only marry for money. a d4 head would look down on people from northside of dublin. they usually asociate with people of their own kind, their race is growing unfortuanatly but their expensive private education usually doesnt show. that sums up a d4
royyysh goys lets go buy a bmw like totally man meet you in brown thomas like ok bye oh yeh mum bought me a new €50,00000000,000000,000 pair of chanel sunglasses!

or

oh - wait like a year - my -another year- GOD! mummy and daddy loike totally got me a million euro bmw loike roysh and i can loike totally bring my fronds out in it loike roysh.

or

omg d4!!!

or

coming for a heino goys?

or

roysh i'v had enough omg is that jamie lee curtis? no omfg gosh
by kelly & bek August 24, 2007
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a d4 is a person that come from south dublin(ireland) who wheres only designer clothes and gets all that there money from "daddy"
omg that girl is such a d4 she like only wears abercrombie and lacoste god! i h8 her
girl comes over oh hi!!!!! bff!
by lilniamhy April 10, 2007
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A four sided die, similar in shape to a pyramid.
Roll 1d4

Throw that bag of d4s on th floor to slow our barefoot assailants!
by Flufy March 09, 2006
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posh irish preson that lives in dublin 4 that wears abercrombie,american eagle labels etc
omg, that girl in the abercrombie is such a d4
by Finn Stokes September 22, 2007
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Upper class area on the better side of Dublin city(seesouthside) The people are mostly rich and affluence is rampant, except for 'ringsend' or 'D4E' wher verruccas and inbreeding are rampant. (see also pov,knackers) due to the affluence of the occupants, jealousy is quite common from people who live in lesser areas (see above and wannabes)
OMG im SO happy I live in d4 and therefore am not poor!
by Jamie O' Connell-Kilroy May 14, 2005
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