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An extreme version of the concept of the "Unwritten Rule", in this case for the Irish people but can apply for community. Irish Omniscience is when a foreigner doesn't know something that all Irish people some how know from birth through a commonly shared telepathy and/or social ques.
~Foreigner: So where is the bus stop?
~Irish Person: It's that tree over there, sher.
~Foreigner: How was I meant to find that out?
~Irish Person: Ah, sher, You just know.
~Foreigner: So it's Irish-Omniscience.
~Irish Person: It is, now.
by The Lumzz May 28, 2017
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