Definitions by Brocky1213

McMayonaise 

When the McChicken has a gallon of mayo in it to the point where that is all you can taste.

Billy: Awww dude I just puked everywhere, I think it's because of the McChicken!!

Me: That's because it's a McMayonaise!!!

McMayonaise by Brocky1213 November 30, 2010