grumpst 

A fellow that is of the African skin color

Look at that big grumpst Shaq

grumpst by cgeeb March 29, 2023

Grumpstink 

When a person throws themselves into a tantrum of such ferocious proportions that they inadvertently pass wind.

"Dude, Ashton went off the rails so bad last night that she pulled a grumpstink! My flat still hums of it."

Grumpstink by Prof. S May 4, 2010

grumstrup 

a mentally retarded boy, that though his gender, suffers from great daddy issues, because his mom is a dude.

so your mom is called michael? you are such a grumstrup....

grumstrup by datdj May 6, 2013

Grumpstep 

A musical sub-genre that consists of (normally) electronic remixes of audio clips from a famed Youtube channel, Game Grumps. Such songs include "Goof Troop Boof", "Banana Shoes", "BaBoom", and "Ice Hair".

Dude 1: Aw, man! Did you hear that Grumpstep song by xXJerryTerryXx?

Dude 2: Which one? Banana Shoes?

Dude 1: Yeah! I had that song stuck in my head for a whole week!

Grumpstep by Random_Grumpling November 11, 2012

Game Grumps 

A let’s play YouTube channel staring Arin “Egoraptor” Hanson and Danny “Sexbang” Avidan. Their episodes often involving silly voices, jokes, running gags, making fun of games (typically Sonic the Hedgehog) and insightful advice and life stories. Also shows by the name of Steam Train, Grumpcade and Steam Rolled appear in the channel, although not as frequent, it is also expected for the channel to have various random segments every now and then.

Do you watch Game Grumps?
Who?
You know the let’s play duo involving that one animator and musician?
Nope.
The two dudes who could be in a Pantene commercial .
OH, GAME GRUMPS

Game Grumps by NotEditedbyMattandRyan February 7, 2018

grumptard 

A grumpy and retarded person

Channa says Peter is a grumptard all the time

grumptard by PitaBread January 20, 2008

Up the Gumpstump 

"Up the Gumpstump" is a saying used to describe a large quantity of anything.

Elderly people are more prone to saying "Up the Gumpstump" than other people. Most particularly when they are stressed about something they have a lot of.

Merged words (gump & stump) believed to be originated from the words gum stump. A gum stump is a stump of a gum or Eucalyptus tree.

Used as an exclamation!

Geez Jim, we've got gophers up the gumpstump!

My my Helen, I have fleas up the gumpstump!

Holy toledo! Mutant Ninja Turtles up the gumpstump!

Up the Gumpstump by *echo* July 7, 2010