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A drunk person's butthole.
Guy: God, that chick is drunk!
Creeper: See if you can get her in her irish door.
by OrdinaryFreak101 June 13, 2011
the, often times, brick wall that appears to be the door next to it while under the influence.
McGarrity: Jaysus what happened to your head Malachy?
O'Riley: Oh, he tried walking through the irish door downstairs.
by finely28 December 11, 2009