The process of spreading one's asscheeks while applying them over another's nose in the act of slumber.
I gave my neighbor a grundleburger when she was sleeping and i snuck in. The next day she had what i like to call "poopy nose"
by Big Teddy Poop August 28, 2007
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by StubbieJohnson December 4, 2019
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When you put some pickles tomatos and onions on a mexican girls "hairy" grundle and start licking it.
by Mike Venezio May 12, 2007
Get the Mexican Grundle Burger mug.A male rubbing ones own grundle with another males grundle, behavior closely associated with two males giving up sexual realations with women to play " word of Warcraft " or " Aion "
Matt and Greg are the biggest grundlebumpers in the world!!! They would rather play Aion then go out and get laid
by Imperial18 October 2, 2009
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by Maelee1234 December 22, 2021
Get the Grundlebutter mug.A hazing ritual or punishment in which an unlucky fellow is strapped to a pole or board, and with the help of many assistants is moved back and forth under an obese unwashed man's undercarriage, from the top of the crack to the back of the sack, in a wiping or scrubbing motion until dead or unconscious.
"Greg informed us that Revenge of the Sith is his least favorite Star Wars film, so I petition that his punishment will be a GrundleButter Keelhaul."
by PhatSphoincter October 1, 2025
Get the GrundleButter Keelhaul mug.A punishment in which an unlucky fellow is strapped to a pole or board and then held up by several men and swiped back and forth under an unwashed obese man's undercarriage, from the top of the crack to the back of the sack, marinating in the unholy 'butter' found therein.
by PhatSphoincter October 3, 2025
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