A period of time where the Game Grumps are in a rut. Also known as the excrement of a dolphin after he's jizzed and bled.
"Yea the Game Grumps new episode was kind of lacking, I think they might be in a grut."

"Oh my god! Did you see that dolphin at Sea World grut everywhere?!?"
by Gamfel Garsh April 17, 2013
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UK word, from the Bristol/South-West region
Ere mate, shazzer had the smelliest grut ever.
by anon June 17, 2006
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Can you please stop leaving your smelly, used gruts all over the floor?
by M February 4, 2005
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1. When the sweat from a mans sack runs down his leg and eats away the elastic in his socks.

2. Another term for chaifing or swamp ass.
Guy 1; Why are you walking like a cowboy?

Guy 2; It's the humidity man, I got the grut!
by Biohavok May 1, 2009
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Scottish food, possibly related to groats. Subject of the momologue 'Gruts for Tea' by the late Scottish writer and performer Ivor Cutler.
"Billy, Billy, gruts for tea!"
by wayne ruscoe April 14, 2006
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Marijuana. Also known as drugs. You smoke them.
How did we smoke an ounce of grut that quickly?! I guess we should buy another...
by Royer September 11, 2003
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The part of an opposite sex body that is only accessible by a tongue (or to a lesser degree penis) that is deeply penetrating the lower orifice's innards.
I was so fucking bent I stuck my tongue all in her gruts.
by nroslm December 18, 2016
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