A fork of Rural Dictionary
Because all Irishmen/women are alcoholics, their breath must always smell of whiskey in order to be "fresh". Therefore, an Irish Breath Mint is taken after a meal and consists of two shots of Irish whiskey in order to freshen the breath.
Patrick: Yummmm, that was a really good dinnner! Lots of potatos! McDrunk: Eew man, your breath smells! Have an Irish Breath Mint! *Patrick takes to shots of Jameson whiskey*