1) In Advanced Dungeons and Dragons, a Grimlock is a large and powerful grey-skinned humanoid, looking rather like a grey orc. Grimlocks are primitive, but also vicious and aggressive.

2) In Transformers, Grimlock is the leader of the Dinobots. He transforms into a Tyrannosaurus Rex. A staple character throughout the entire run of the TV series and the comics, Grimlock even went through three different toy versions in Generation 1.
Me Grimlock! Me king! Me kick your butt!
by Andy July 22, 2004
In Transformers, he is the Leader of the Dinobots. He is one of the most powerful Autobots.

There are two distinct interpretations of Grimlock:

In the cartoon series, he is a strong but dumb "comedy" character.

In the comics, and especially in Simon Furman's version of him, he is a born warrior and hardman, who has a very different approach to leadership to Optimus Prime. He believes that Prime's compassion prevents the Autobots from defeating the Decepticons. He looks down on those he considers inferior, but is fearless in battle.
Although arrogant and stubborn, Grimlock is a highly effective leader. He is an anti-hero, a cross between Wolverine and Leonidas.
"Optimus Prime is too soft, if Grimlock were our leader, we could have won this war long ago!"

"Me Grimlock, Badass!"
by GaryUK August 02, 2007
The act of a grenade bouncing back towards the person who threw it. Grimlock2 is notorious for this act.
Grimlock2 cooked his grenade only to have it bounce off a low ceiling back towards him, to which he exclaimed, "Shit! I grimlocked it!"
by ThatsRightCOW June 21, 2009
From transformers , the leader of the dino bots.

Gets a brain transplant and goes crazy.
Me grimlock mash metal.
by corey jamison April 11, 2005
A sexual position where the female hangs her head over the edge of the bed face up. The male then recives a {blow job} from her while giving her the {shocker}. Usually done in an aggresive manor.
"I hit all three holes in the old ladie last night junior...that's right son..I gave your mom the Grimlock."
by Rockabilly March 10, 2009
This is the occurance of dreadlocks in the womans pubic region. They are often very thick, long and have a strong odor of foul-smelling vaginal discharge and wet dog. More often than not, there is slight hint of patchouli, in a failed attept to cover up the heinous stench.
I took this bitch out for some drinks, right. One thing led to another. I got my hand down her panties, and got stick. My rings got caught on her grimlocks. I was like, yo!
by Henry Bemis September 16, 2008
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