A man who talks a big game but is truly a light weight. The typical irish disaster enjoys sitting in his own vomit, loving George Bush, and hooking up with any girl he can get within a ten foot radius.
Girl: Pat is such an irish disaster.
Boy: I know, didn't he hook up with that easy friend of yours at a party right after he vomited?
Girl: Yes, that was him. I told my friend to go to the doctor to see if she got some of his special suprises.