Cark
Cork, as pronounced by the people who live there. Usually preceded by 'the People's Republic of' and followed by 'boy'.
Dere's Ireland, dere's Norn Iron, and den dere's de People's Republic of Cark, boy.

Shall I translate it into posh English for you, head?
Ah, a visitor! Here it is in posh English.
There is Ireland, there is Northern Ireland, and then, my good fellow, there is the sovereign People's Republic of Cork.
Questions
What does cark mean in Ireland?
Cork, as pronounced by the people who live there. Usually preceded by 'the People's Republic of' and followed by 'boy'.
How do you use cark in a sentence?
“Dere's Ireland, dere's Norn Iron, and den dere's de People's Republic of Cark, boy.”
Updated
On the list: Irish slang words