Grundleduce

An especially aggressive bowel movement, usually performed while performing an outdoor activity.

We were camping and I had to take a grundelduce. So I climbed up a tree, pulled down my pants, and screamed bloody murder. Grundleduce.

by JooManG May 28, 2018

Grondle

To be in a state of distain or unpleasantness after a night out, usually due to a hangover or come-down

aw mate, he was such a grondle the other night- almost killed me!

by Grettski October 3, 2018

grundle butter

A build up of sweat and unwashed buttcrack that results in a sticky, buttery poo-paste that may stain underwear or make it difficult to wipe successfully.

"Oh man, I keep wiping but there's just so much grundle butter! Maybe it's time to see a doctor..."

by slipperysl_hoe_pe November 29, 2018

grundlemusk

Eau de taint said differently. Speaks to the aroma of the nether regions.

When returning underwear to a department store an associate exclaimed, "these can't be returned there is a strong grundlemusk!".

by JCZoo May 9, 2019

GrundleBundle

Essentially a Violent Tea-Bagging...

or my favourite turn of phrase "Like a dropkick, without the feet"

John gave Louise a hard grundlebundle last night, eye sockets full of testicals and a mouthful of anus, luckily only bruised her nose.

by QuifingChopper June 2, 2019

grindlehoof

Some dick whos a hobo wizard and loves to use grease. Like seriously wtf. Also he's big gae

Grindlehoof: *casts grease*
Everyone: Not again

by Uhh ok October 30, 2019

Grundle Dan

The full name of your grundle

Yo J-Slice just hit me in the grundle dan

by Dillmann November 3, 2019