grumpz 

The act of being emotionally drained and rejection-happy.

Naw, he too borz and decided 2 stay home; too grumpz today.

grumpz by Wucifer March 31, 2010

Game Grump

the art of skipping the tutorial in a game you've never played

i'm gonna game grump it

Game Grump by LiamTAT July 31, 2018

grossie grumpkins

The anonymous old man - most likely suffering from some form of dementia - who takes a shit in the sink of public restrooms

Don't go into the bathroom, Bob. It looks like Grossie Grumpkins struck again.

grossie grumpkins by Betty Wagaman October 15, 2006

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

Grumpasalty 

A Grumpy old man who hates weebs and Anime

Did you get banned from the server? Yea a Grumpasalty found out i like anime

Grumpasalty by alexalas March 19, 2019

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

Grump Bump 

When a certain YouTube video suddenly get a lot of views as a result of being referenced on GameGrumps.

This comes from the YouTube show, GameGrumps. It was created by Dan during Part 14 of their Legend of Zelda: Wind Waker HD series.

That Monty Python skit got a Grump Bump when Arin and Dan acted it out.

Grump Bump by Walter Is White November 16, 2013