A derogatory name for the irish. A higher form of paddy and mick. MUCH more offensive.
It originated, some say, in Boston and other 19th century New England areas. The Irish were said to have come to America for an easy free ride(which they did not have) and that they CHISELED the Americans out of money.
Bigot:Did you see that damn Mick?
Bigot 2: Yeah, that f***ing chiseler had no right to apply for a job here!