Fella, lad, chap, gason.
It's more of a Scottish slang word but the Irish do use it sometimes.
It's not Irish; it's Scottish slang.
In English the Irish people call them "runners" but in the Irish language i am not sure.
"Dude" IS a slang word! It means "man" or "fellow."
In Irish the word for 'man' is fear (far).
Dude.
The Irish word for "a man" is fear [pron. 'far'].
The Irish word for an "old man" is seanfhear.
It is a slang word in Ireland for a party, usually with traditional Irish music and dancing.
lush is a slang word for alcohol, and lushing means drinking.
In Ireland it's: acting the prick / thran
Irish and Scots Gaelic is d'fhear