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8.
Verb. To go on a hateful diatribe against someone or something, esp. ethnic minorites.
"Hey, did you see that Michael Richards routine?"
"Ya, he totally pulled a Mel Gibson"

or similarly,

..."He went Mel Gibson on those guys."
by 50Szent December 27, 2006
 
9.
an ok director who looks down on minorities. also see hitler and mate.
the passion of the australian nazi
by stan February 13, 2005
 
10.
see asshole he sucks but he used to be cool
mel gibson hates jewish people and isnt a true catholic
by alex14 August 06, 2006
 
11.
"Actor" and director, full name Mellicent Religiosus No Sodomites Please I'm Catholic Gibson, who was born in New York State and made it big in Australia playing a former cop who becomes a hero for a lot of post-Apocalyptic Aussies when you can tell by the look on his face that all he wanted was a Fosters. Often described as anti-Semitic (Jew-hating), and he may very well be ... on a bad day he gives the Jews about one percent of the venom and bile that he reserves for gays. The most consistently homophobic major director of the last twenty years. You don't believe me? Just watch Braveheart, for Chrissakes. Speaking of which, The Passion of the Christ would do as well.

Having said that, he really does have a cute ass.
Quotes from Mel Gibson:

And tell the English ... that they may TAKE our LIEEVES ... but thay'll NEVAHR ... get theer HONDS ... AP oor KELTS!!
- Braveheart (Director's Cut)

Umm ... yes, well, it's a matter of fact that my grandfather was homosexual, and so was that teacher in remedial English that kept giving me detention, and Pontius Pilate, and Satan, and all those guys from South Africa who dumped on the niggers, hey, one of my best buddies was black, you know, and all those Orthodox Jews were homosexual too, and so are the Reform movement, and there are a lot of them out by Alice Springs and Coober Pedy, and I think Martin Luther was homosexual too, yeah, and ...,
- confidentially leaked interview

Danny, c-mere, stick my shoulder joint back in the socket, I'm too pooped, just don't, y'know, get too close, man ...,
- Lethal Weapon 2, Director's Cut

I only hate the Jews when I'm drunk.
- confidentially leaked interview
by Fearman December 15, 2007
 
12.
an actor/neonazi/liar.
passion of the christ was not true. there was a list of lies in newsweek .
by j-unit January 17, 2005
 
13.
south park definition

when you spread ur butt cheeks and fart on someone
ill give you a mel gibson if you dont shutup
by Lindseypoo August 30, 2005
 
14.
An ignorant douche bag who has no friends and has the IQ of a rock.
Mel Gibson is a jackass.
by Michael Johonnson February 19, 2007