Plastic Paddy

Etymology
From the sense of as, , , etc. and  as a generic name for any Irish man.

Noun

 * 1)  A person of another ethnicity considered to be passing or posing as Irish.
 * 2)  An Irish person considered to be inauthentically Irish, especially  recent Irish arrivals to London.
 * 1)  An Irish person considered to be inauthentically Irish, especially  recent Irish arrivals to London.

Translations

 * French: faux Irlandais
 * Irish: Páidín Plaisteach