D4 head

n.

Heard in Dublin

Derogatory term used to describe people who originate from Dublin 4 post code, or generally south-side people with contrived posh accents.

In use

Ye dozy bleedin D4 head, why don't you shag off back to mammy?

Posh English

You foolish, tiresome metropolitan resident, why do you not bugger off back to your mother?