grundlecunt 

The grundle of a man so morbidly obese, so overcome with ass flaps and rolls that it contains a depth similar to that of a vagina.

I thought I had slipped deep into Fat Steve's rectum, but when my cock fell between his legs after the first few thrusts, I realized that I was merely penetrating his hairy grundlecunt.

grundlecunt by Aephoxe May 12, 2016

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

Grundlecopter 

To rapidly lick in a circular motion upon ones grundle!

While the hot M.I.L.F was felaciating me I was sent into a tailspin when she suprised me with a Grundlecopter!

Grundlecopter by nhyankee1979 July 17, 2009

grundlemunch 

Someone who licks the grundle flap that runs from the bottom of your balls to your asshole

Dude your such a fuckin grundlemunch

grundlemunch by l_Doughboy_l April 26, 2006

GrundleBundle

Like a drop kick, but without your feet...

Or a violent Tea-Bagging.

john gave louise a hard GrundleBundle last night, eye sockets full of testicles and mouth full of anus.

GrundleBundle by QuifingChopper June 2, 2019

Grundlebundle

The bunching effect that takes place when the sweat from a good workout meets the boxers in the grundle region. Also can be used as an insult.

Man I need to hit the showers I've got Grundlebundle like nobody's business.
or
Man that clerk always thinks im trying to steal , what a grundlebundle.

Grundlebundle by Skinflutelessons July 20, 2007

grundlebundle

A grundlebundle is a random bird i found wen searching grundle in google i dont know why i was looking for it

JESUS CHRIST that grundlebundle was flying lower than most

grundlebundle by Callum Mays November 12, 2004