The Collaborative International Dictionary
Hibernicism
Hibernicism \Hi*ber"ni*cism\, Hibernianism \Hi*ber"ni*an*ism\,
n.
An idiom or mode of speech peculiar to the Irish.
--Todd.
Usage examples of "hibernicism".
The instances are innumerable, where the defendant has pleaded that the deceased was an Irishman, and that therefore defendant had a right to kill him--and upon the proof of Hibernicism, acquittal followed of course.
Fancy, however, that, without any Hibernicism, the best road is in the water of the lake.
Of course, the answer, though it sounds like an Hibernicism, is to say that they do have a creed.