American Oirish
The tourist version of Irishness. Shamrocks, plastic paddywhackery, and slang worn like a costume. Not the same as an American who just lives here.
American immigrants = good. American Oirish = bad.

Shall I translate it into posh English for you, horsebox?
Ah, a visitor! Here it is in posh English.
American residents are welcome. Theatrical pseudo-Irish affectation is not.
Questions
What does american Oirish mean in Ireland?
The tourist version of Irishness. Shamrocks, plastic paddywhackery, and slang worn like a costume. Not the same as an American who just lives here.
How do you use american Oirish in a sentence?
“American immigrants = good. American Oirish = bad.”
Updated
On the list: Irish slang words