Top Definition
a) The smell left behind when you forget to throw a McDonald's bag out of your car.
b) The smell of an Irish man.
c) see mick stink
Man I know there's a bad mcstink in my car but I dont know if it's from giving a ride to Patty O'Reily or the mcchickens I had the other day.
by whodiz October 12, 2008
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