Top definition
Grundle 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 grundle?
A: You know, the chad, the part between balls and arse.
by Chane. March 27, 2020
Get the grundle neck gaiter and mug.
May 16 Word of the Day
Abbreviation for:

I DON’T GIVE A FUCK WHAT THE CDC SAYS YOU BE WEARING YOUR MASK
Karen: The CDC says we can stop wearing ma
Frank: IDGAFWTCDCSYBWYMFM !!!!!!
by Callmemaybe69 May 14, 2021
Get a IDGAFWTCDCSYBWYMFM mug for your brother-in-law Manafort.
2
The act of burrowing your nose into someones anus durring sexual playtime. A gluteal motor boat. Also known as a "Steam Boat Willy".
We started with the Dutch rudder, then moved on to the Dirty Sanchez, and ended with a lengthy and lively Grundle.
by Tasty time May 21, 2012
Get the grundle neck gaiter and mug.
3
A protuberous underside. Particularly on an adorable animal.
My cat has the wobbliest grundle.
by Abiy0y0 February 26, 2017
Get a Grundle mug for your cat Jovana.
4
noun: The sweat off your balls.
The guitar picks stink of Dave's grundle and tiger balm!
by Metal Maniac February 26, 2006
Get a grundle mug for your cat Vivek.
5
the art of pulling down your pants and smashing your testicles and anus down on the head of a passed out human repeatedly.
Luke puked in the frying pan before passing out, so Nate gave him a grundle
by weiser May 02, 2005
Get a Grundle mug for your mama Zora.