look up any word, like blumpkin:
 
1.
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
 
2.
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