Grumbla 

A word to describe a friend, or close loved one

"What's up my Grumbla?"

Grumbla by Aggegg March 28, 2023

Grumblebrag 

To complain in a superficial manner, when one is really just boasting.

I have to wear my wedding ring or else I just get hit on too much. I'm not actually annoyed, I'm just grumblebragging.

Grumblebrag by das Luftkissenboot November 13, 2014

grundle grumble 

grundle grumble ( grundle grumbler, grundle grumbling )

1: When a young lady is pleasuring her partner by kissing or licking his grundle the scrotum will cover the womans mouth preventing intelligible speech.

2: Flatulence that is prevented from escaping up the butt crack that flows over the grundle impacting the scrotum making a distinctive rumbling sound. Grundle grumbles are particularly evident when seated on leather or vinyl seating surfaces or those cheesy fiberglass chairs in laundromats.

3. Mysterious sounds that emanate from the grundle.

1. Whats that honey? I can't hear what you saying you grundle grumbling bitch you.

2. Jesus Dave I heard that grundle grumble from here. Stop farting on my leather seats..no more fucking burritos for you.

3. What the fuck was that? Oh..a fucking grundle grumble. Sorry. Do you have any fabric softener?

grundle grumble by Global Feetus April 2, 2007

grumblump

A level name in the final world of Super Mario 3D World

Don't look up Grumblump on Urban Dictionary. - RedFalcon, 2021

grumblump by 5003erX March 5, 2021

Grumble Flick 

(British) A grumble flick is a form of video based entertainment that allows men to pleasure themselves without excessive use of their imagination.

Jack stayed home and watched a grumble flick

Grumble Flick by WordWright June 21, 2009

grumble volcano

When one person has diarrhea on another person's face who then vomits upward like a volcano spewing lava.

I just had Mexican; can't wait to go home and grumble volcano my girlfriend.

grumble volcano by ghostkilla696969 August 21, 2013

Sgt. Grumbles 

A ranking officer in the Bear Military, primarily known for his role in the "Grumbles Massacre", where he allowed his unit to come under heavy attack by the rebel Lion Forces resulting in their complete slaughter. At the time, Sgt. Grumbles had found a cache of honey and had consumed it all.

"Sgt. Grumbles! Launch the counter-offensive! Sgt. Gruuuuummbles!"

Sgt. Grumbles by Johnathon Wibworth III Esq. September 24, 2005