Definition 1: The stubble of hair on a man's testicals after he has finished manscaping.

Definition 2: When you shave your balls and your skin gets very rough and stinky.
Girl 1: Did you see that man's ball gruff?
Girl 2: Oh yeah, it was so rough and prickly

Man 1: Man, I have the worst case of ball gruff ever
Man 2: Yeah, my razor is very dull and causes me to get bad ball gruff as well.
by Jarl Balgruff December 29, 2011
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To Scruff the Gruff, is to go down on an extremely somewhat not attractive female.
James:"Hey did you see Jenny this weekend?"
Bradley:"Yeah man."
James:"Well did you scruff the gruff?!"
Bradley:"Hell yes I did; she is so tender."
by Baconburger w/mayo September 20, 2005
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Dirty knotted ass hairs. That ass needs a shave or waxing.
I was about to do that ass when she spread them cheeks and there was nothing but ass gruff braaaaahhhh.
by Eaton Holgoode April 21, 2017
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The little bits of poo that can gather on hairs around the anus.
i.e. That girl has lots of gruff nuts dangling down.
by Steven Mallaber November 7, 2007
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Lead Singer of the Super Furry Animals. Notoriously slowly spoken. Fuelled by imagination.
by Kate Moles October 25, 2003
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Short for muffin gruffin: also know as a queef or fanny fart. A fart from your downstairs mixer.
by OfficialMuffGruff April 9, 2016
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The small pieces of feces that get stuck in one's buttocks hair.
"I've got some itchy gruff nuts."
by Fat Burger February 21, 2003
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