Irish amnesia is an extreme version of the cold shoulder. When an Irishman with a short temper is annoyed with someone he may ignore that person's entire existence.
person1:"She has irish amnesia."
person2:"What's that?"
person1:"She'll always forgive you, but never forget what you've done."
person2:"What's that?"
person1:"She'll always forgive you, but never forget what you've done."
by Valerie_Grace July 16, 2008
by ewcollins February 11, 2016