Paddy cap

n.

Heard in Tipperary and Mayo

Cap worn by men in the old days, now used by chaps that haven't shaved yet.

In use

That maneen in the paddy cap is always throwin' shapes and actin the maggot and a fart would blow him into the middle of next week.

Posh English

That little upstart in the flat cap is perpetually putting on airs and playing the fool, and a mere gentle breeze would propel him into next week.