Definitions by PwnzYouAll

McFag 

A person who is fat, thus liking McDonalds or any Food and has done something really mean, stupid or gay.

"Guy #1: Yo see that fat guy over there? He was messin around with your girlfriend

Guy #2: WOW, what a McFag! Im Gunna kill him!"

McFag by PwnzYouAll April 25, 2010