o'leary - A state where you're so wasted you might as well be dead and

A state where you're so wasted you might as well be dead and probably will end up in the hospital or on the tracks.

I woke up in the hospital after an O'Leary night. I had no idea how I got there.

My friend went O'Leary and tried to dance on the train tracks.

My cousin got so O'Leary he tried to kiss a vending machine.