The highest quality, refering to a girls ass.
"That is grade A quality meat"
by B-Stange April 14, 2003

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Top Definition
Used in reference to a girl or woman who has a good tit to ass ratio. Usually someone you would hook up with.
Damn, she's grade A.
by ABigJohnson November 14, 2009

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a mid atlantic/ southern term for eating the box
As soon as I get back I'm callin him for some of that Grade A
by PsychoNutBalls April 16, 2010

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high quality, top 10, above average
Yo he look like a Grade A rapist.

You are grade a dumb
You grade a smart
by TBM2 July 17, 2016

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use this word when refereing to something good and/or discribing something thats totally fucking awesome!
guy 1:yeah dude, you know that hot ethiopian chick!?! i tapped that ass!! TWICE!!

guy 2: Dude!! that fucking grade A!! NICE!
by hfjhahfk January 20, 2009

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