leaving the bar or anywhere for that matter, without closing niceties, like a kiss goodbye to that annoying girl or mentioning something to your friends
Where'd Cornelius go?
He must have pulled another Irish goodbye, that bastard.
Leaving quietly out the side door of a party or bar without saying goodbye to anyone. Mostly due to the fact that family or friends would most likely take your keys away for being to intoxicated.
next morning:
Irish goodbye O'leary? You should not have been driving!
