Grundling

The act of taking your strong arm and feeding it under an unsuspecting friend's legs as he stands and lifting him up by his grundle. This will cause extreme pain of the marble sack and or loss of baby makin mojo.

Jose snuck up behind serg and was grundling him into oblivion.

by Valente Bros. January 13, 2008

Grundling

When two men rub their grundles together to get off; this act is much like when two women scissor each other.

“I was grundling Phil so hard last night, that my taint hurts something fierce” Cory said, exhausted from his tryst

by XxFrictionxX May 31, 2019

grundle

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

Grundle

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

Grundle

A protuberous underside. Particularly on an adorable animal.

My cat has the wobbliest grundle.

by Abiy0y0 February 26, 2017

Grundle

Another name for Heroin.

"I am picking up some grundle today."

by Sticckky May 01, 2007

Grundle

The little pieces of pooh and underwear lint that get caught in the hair around your anus.

My Grundles were making me itchy, so I picked them off.

by Bud Green February 07, 2004