grun 

The cheesey discharge from an unclean vigina, which has crustated on the outer viginal flaps.

I am not going down on you until you clean that grun off you!

grun by neal December 22, 2003

Grun Day 

The yearly holiday when men wash their {grundle} on June 2nd.

Can't wait for Grun Day this year!

Grun Day by Clamchester June 22, 2020

grunty boy

A character created by YouTuber MandJTV that appears whenever he gets a sponsor

“Haha, it is I, Grunty Boy”

grunty boy by Shogun the Samurott March 8, 2021

grundel 

Grundel is another word for chad: the region between the balls and the arse-hole; can be an erogenous zone for some.

Girl: I was fingering that part between his balls and his arse and there was shit there.
Everyone listening remained silent but later laughed among themselves:
'Eww! He had a shitty chad.'

When you measure your dick, you don't start at the arse-hole and include the chad; you risk getting shit on your measuring tape.

Q: What on earth is a grundel?
A: You know, the chad, the part between balls and arse.

grundel by Chane. January 17, 2021

grunkle stan 

mabel and dip dops great uncle

I'm grunkle Stan and you're watching Disney Channel. XD

grunkle stan by soppu chan June 18, 2017

grundle fish

The act of diving head first into the groinular area looking for some fresh, salty grundle.

Gian grundle fishes like a truffle pig looking for black gold.

grundle fish by j$.devops October 5, 2010

Grunty 

IT'S POOP!

Person 1: "I've had so much fiber I have to go to the bathroom and make a grunty (take a dump)."
Person 2: "Remember to bring in air freshener so the bathroom does not stink too much from your grunty."

Grunty by MCACABKM August 16, 2018