McSickness

The act of being cool, amazing, insane, ect with Last name being McDonald.

That car just screams mcsickness.

by Shane McDonald January 18, 2009

McSick

That slight woozy feeling you get after scarfing down fast food, specifically McDonald's.

"I was craving Micky D's, it was so good going down, but now I'm feelin' McSick."

by Vinpaw January 9, 2009