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A man who goes beyond the ordinary. A stud in every form. May not be appreciated on the home front, but when he travels women flock to him. All men aspire to be g-rat, but none ever achieve it. G-Rat is a freak dancing champ. Not to be confused with g rat attack, a term used to describe a wannabe G-Rat who will never achieve that status.
Wow! Check out G-Rat...he makes babies like no other.
by mandyp May 28, 2007
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Pronounced "Grash"
Based off of Shakespeare's character Gratiano from Merchant of Venice

noun - one who chatters idly at length without making sense, someone who says something pointless or asks a stupid question

adjective - something pointless, monotonous, doesnt make sense
noun - He is a grat because everything that comes out of his mouth is crap and I can never understand him.

adjective - This class is grat because all we do is listen to stupid lecture and take notes
by The Anti Grat November 01, 2006
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The word "grats" or gratz is a truncated form of the word congratulations, or congratz. The word is used by people in online games (mainly mmorpg’s and mostly it is seen in PristonTale) its use is to congratulate someone on accomplishing something. I.e. moving up a level.
(Gold level up! appears above Jacl3's head)
Jacl3: w00t level 34!
l337357: grats man
by Jacl3 October 03, 2004
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Basically just another word for great. But the word grat is grat -er.
Girl: You look great!
Other Girl: Well you look grat!
by nathan wong January 07, 2015
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When something is lame, stupid or sucks its grat.
"You hear that new song on the radio?"

Yea, that shit was grat!
by Drep859 January 10, 2011
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Slang for gratuitous, or free - having similarity to meaning as in a giveaway. An exclusive special in preview or experience - similar in context to perk.
The download comes grat with a preorder of the album.
by charvelguy June 17, 2010
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