Irish Goodbye The act of drunkenly leaving a bar or party without informing any of your friends where you're going.
Ex: "Dude, where did you go last night? One second you're doing a keg stand and the next you're gone. You pulled an Irish Goodbye on us, man."
Do you want to help expand the English language? Email me your submission and definition at streeter.seidell @ Gmail.com with the subject "Words"