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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

grumptard 

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
More from Urban Dictionary

piddlefart

verb. To waste time doing nothing.
Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
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