GrundleBurger 

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"

GrundleBurger by Big Teddy Poop August 28, 2007

Grundlebutter 

A fowl wizard from the dark nether regions, who manifests cheeses that are unfit for human consumption.

Grundlebutter's cheese was dank and slippery.

Grundlebutter by StubbieJohnson December 4, 2019

Mexican Grundle Burger 

When you put some pickles tomatos and onions on a mexican girls "hairy" grundle and start licking it.

I ate a mexican grundle burger last night .. it fuckin rocked

Mexican Grundle Burger by Mike Venezio May 12, 2007

Grundlebumpers 

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

Grundlebumpers by Imperial18 October 2, 2009

Grundlebutter 

The butter from built up cheese in a warm crevous.

Grundlebutter is better than most butter.

Grundlebutter by Maelee1234 December 22, 2021

GrundleButter Keelhaul 

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."

GrundleButter Keelhaul by PhatSphoincter October 1, 2025

GrundleButter Keelhaul 

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.

"Jon said he doesn't like Star Wars, so he has been sentenced to a GrundleButter Keelhaul"

GrundleButter Keelhaul by PhatSphoincter October 3, 2025