Nordie
A Northerner: someone from Northern Ireland, or with a Northern accent. Said in the South, mostly fondly.
Yer man in de chipper's a Nordie, he calls everyone big lad.

Shall I translate it into posh English for you, boi?
Ah, splendid timing. The scones are warm. Here it is in posh English.
The gentleman in the fish and chip shop hails from Northern Ireland. He addresses everyone as big lad.
Questions
What does nordie mean in Ireland?
A Northerner: someone from Northern Ireland, or with a Northern accent. Said in the South, mostly fondly.
How do you use nordie in a sentence?
“Yer man in de chipper's a Nordie, he calls everyone big lad.”
Updated
On the list: Irish slang words