Mick or "Mic" is a short form of the popular Irish forename Michael and is used extensively throughout Ireland. Some also claim that it comes from the popular Irish surname "Mc-," as in McDowell, or McShane.
It is also sometimes used, usually with a lower-case "m", as an offensive slang term in British English and American English for an Irish person or a Roman Catholic. British English (BrE) is a term used to differentiate the form of the written English language in the United Kingdom from other forms of the English language. ...
American English (AmE) is the form of the English language used mostly in the United States of America. ...
The Roman Catholic Church, most often spoken of simply as the Catholic Church, is the largest Christian church, with over one billion members. ...
It is also used as slang in the phrase take the mick meaning to tease. This page is a candidate to be copied to Wiktionary. ...
One example of this would be Michael "Mick" Ralph or Michael "Mick" Reddy.
Also, can be used between Irish as a term of endearment to embrace being a lush or hard-partier.
An example of this would be, "Did you just drink that entire bottle, Conor? You are such a mic."
Another popular example of this would be, "Aaron, I know that you throw up everytime you drink, but can you please try and control yourself? You are behaving like a mic."
Please click on the link above for a visual example.