Girl's Really Ugly Fat Freind
Matt: Conner keeps hooking up with GRUFFs.

Taylor: That's why he's such a great wingman.

Matt: so true.
by Eringobrag December 31, 2010
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The Pubic hair of an old person. Referred to as grey muff or grandma/grandpa's muff. (noun)
When I stayed at my grandparents house there was gruff all over the bathroom.
His plastic surgery fooled me about his age until I went down on him and found a forest of wild gruff.
I used my Grandma's gruff to create a Santa Beard.
by Yellow Foot Clouds August 21, 2009
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To take ones hand and in an upward motion, pet or thrust your hand up the backside of a strangers/friends head in a more forcefull manner.
"Dude, you just gruffed that custodian!" "I know! His hair was all greasy, it was sick!"
by Lorts February 28, 2006
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Valuable, versatile, and all around unbeatable word used as a substitute for words meaning anything/anyone that is unpleasant, unsettling, unkempt, disorderly, vile, or otherwise distasteful.

Can be used as a noun, verb, or adjective, as well as a solid dis on ones character.
Ryan: "Wow honey, I know i promised to love you for worse too, but if you want to turn me on, becoming the gruff that you no longer clean in the house isn't doing it."

JB: "Is that Rexa from high school? No... It couldnt be, that lady looks 45, not 30 like us?!"
Lindsey: " Damn!!. Looks like she got zapped by the gruffolotron. And she was hot! High price for fun."
by Shardi Bee June 3, 2019
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The small patch of hair lying in between the penis/vagina and the anus. (It can also have a second word added to it to become an insult, seen in fig. 2)
Geoff: I fucked Gemma last night, but man, that gruff was disgusting
Dave: Really?

Geoff: Yeah, dude, I swear it looked like there was breadcrumbs in there

Fig. 2

James: Jeez man, Zack is such a gruff-nugget
Sam: I know right! He literally stole Andy's girlfriend right in front of him!
by ayden mmmmmm August 24, 2015
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