jackeen
A Dubliner who gets called a jackeen by Cork people who think they’re the real deal and have no idea what a proper accent sounds like.
That jackeen came to Cork and couldn’t even speak properly, and got laughed at by a man who just wanted his tea.
My uncle calls every Dubliner a jackeen just because he once got stuck behind one in traffic.
That jackeen tried to act fancy and ended up tripping over a puddle in the street.