A McSweeney is one belonging to a family who are believed to originate in Ireland or New Zealand. As a rule, they are incredibly smart and athletic in addition to being nice and well liked by most. They are for the most part slow to anger, but you should not fuck with them. All in all, they're just awesome.
That kid see ms to be good at every thing he does. he must be a McSweeney.
by waggawagga123456 October 06, 2010