An Irish Hello is when you sneak into a party and hide for twenty minutes before walking out as if you’ve been there the whole time.

Similar to an Irish Goodbye, an Irish Hello is a hen you wait until you are absolutely sure a person is leaving before you make an effort to acknowledge their presence. It’s a dick move but everyone does it so get over yourself.

When you flash someone on St. Patrick's Day

telling a group of people you want to call it a night - then after you convince the group leave the baryou circle the block and go right back in the same bar

Contrary to the Irish goodbye, an Irish hello is the act of promising others you will attend an event/party and then never showing up nor cancelling last minute.

Arriving late to a party, sneaking past everyone without a greeting to the bar for a few shots to catch up then coming out to say hello.

The Irish Hello is a newly coined term derived from the already famous phrase "The Irish Goodbye". Essentially, it is the opposite of the "Irish Goodbye". The perpetrator of the "Irish Hello" will hold court, and show up to a place, party, event, or meeting, uninvited, and unwanted without any foreseeable indication of their arrival. Its first origins date back to John Paul Occhipinti's famous exile and return to his home in Scranton, PA. John Paul Occhipinti left his son John Salvatore Occhipinti the reins of the home with permission to throw countless, and endless parties, only to return from Ocala, Florida with no notice, intentionally killing the buzz of the summer parties that were set to ensue.