Grundlesac

The flap of skin, in males, between the scrotum and the anus, which can be used for various things such as clipping flashing lights to. Grundlesac's can vary in size from droopy to so small that they can barely be noticed.

Damn Alex, that is so sweet how you can clip that pulsing belly button ring to your giant grundlesac.

Grundlesac by pdiddy July 12, 2004

Grundles 

Grundles are brown cave-dwelling creatures from the My Little Pony movie. They look like monsters to most people, but, as they constantly reassure Baby Licketysplit and Spike the dragon, "Grundles good!" They are helpful, friendly creatures. Interestingly, Danny DeVito played the Grundle Leader in the movie.

Grundles not monsters! Grundles good!

Grundles by Jezani May 10, 2009

Grundles 

Underpants, Underwear, be it Boxers, Briefs, Thongs, high rise, low rise, cotton, rayon, or polyester.

Grundles is actually short for grundlemires, as panties is short for underpants.

If you cut somebody off in traffic and they start flipping you off or shouting obscenities, simply say "Hey, don't get your grundles in a bundle, pal."

Grundles by Sara B Ellum December 22, 2010

Grundlesmooch 

The male on Male version of scissoring.

Noun: That Grundlesmooch session at the male strip-club last night was insane.
Verb: The Grundlesmooching commenced quickly once Herbert lured Chris into the wrestling ring.

Credits:
Word creation: User: mull3286 at Reddit
Word definition: User: freshOJ at Reddit

Grundlesmooch by Annonomouse June 7, 2013

Grundlebucket 

A grundlebucket is not a pleasant person, this person always manages to weasel their way into every inch of your life and transform your joy to pain. A grundlebucket should be avoided.

Mr May: Hey student 1 can I call you Grundlebucket as a nickname

Student 1: I dont know sir I'm pretty sure that's not a nice name let me search it up on the Urban Dictionary
Mr May: OH ok, oh yes go right ahead
Student 1: A grundlebucket is not a pleasant person, this..... HEY this wasn't here last week, Grundlebucket is an inside joke for our class, this guy who wrote it.. they,...they...they...must.tt.t be..iiin our..classsss!
Editor: HA

Grundlebucket by Daniel5tookenham February 24, 2022

grundlelicious

an adjective used to describe the prototypical grundle as being suculant and delicious.

Ben's durf is extremely apetizing and grundlelicious

grundlelicious by jdubbs February 23, 2006

Grundlebate 

A highly stimulating sex act whereby your sexual partner tightly, but gingerly, pinches your grundle while you furiously and feverishly masturbate yourself. To perform properly, your mate must pinch the grundle between their thumb and forefinger and must tug this fleshy area back and forth and up and down in rhythmic and synchronous harmony to the recipient's stroking and beating of their turgid cock. Said act is known for explosive orgasms but can result in a very sore taint if performed too frequently.

Carl exploded in a body quivering orgasm after his girlfriend helped him get off with a little Grundlebate action. She tugged a little to hard though and Carl's taint was a little tender to the touch the next morning.

Grundlebate by Eaton Holgoode April 28, 2015