look up any word, like b4nny:
 
3.
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!"
by PwnzYouAll April 22, 2010
 
1.
A homosexual with so many stereotypical characteristics that s/he seems to be a walking caricature.
Will and Grace's Jack is such a McFag.
by a12no November 18, 2005
 
2.
typically white males who have tremendous egos and love Apple and Steve jobs, they must own every single Apple product ever made and preach to you the "power of macs" as they lean over your shoulder to look down upon PC's" these men typically think they are very cool but are nothing but douche bags that have money and think owning an apple and having money equates to cool
person 1: you're pc is great and all, but my iphone and mac have apps for that...

person 2: shutup, mcfag
by suckafreeALLday May 13, 2010
 
4.
a homosexual who previously worked at mcdonalds. probablu a kid thats nvr gone out with a grl. maybe once. the kid also once worked at a mcdonalds but quit cuz hes a homo
Jeff Deluca is a McFag
by AdioMcFag December 31, 2005
 
5.
a fag who touches da littlez kidz at mcwendyz
mc timbakaz momz
by El guatemalteco December 16, 2003