The feeling you get after eating McDonalds.
I McGrets having that quarter pounder with cheese. I feel like i'm going to throw up.
by altruisticaussie March 10, 2009
The deep regret you feel within your bowels after having engorged yourself on a late night McDonalds combo meal.
I definitely should not have eaten that Big Mac just now. I got a case of the McGrets.
by splixx December 26, 2009