Being British-Born (and not actually having a problem with it) of Irish parents I've long become immune to the 'Plastic Paddy' line. What I've found is it's often used by mediocrities whose only claim to any kind of 'credibility' is the fact that they were born somewhere on the Island of Ireland - which is hardly something they can take any credit for.

A mate of mine prefers to describe himself as 'FBI' - Foreign Born Irish!

I like that one.