grumpy biscuit 

A person who is annoyed by serious stuff, spamming the word "STOP", "WHAT", or something goes along the line.

person: "Somebody has stolen your video for an ad!"
A GB (Grumpy Biscuit): "STOP!"
person #2: "Stop being so obnoxious, you grumpy biscuit."

grumpy biscuit by DoodleBaldiBFB August 22, 2019

grumpy bum 

when you are being a poo to someone and being mean to someone

why are you being a grumpy bum :(

grumpy bum by JEFFERY THE 3RD September 1, 2020

grumpy man

my brother Julian

wow, Julian is a grumpy man!

grumpy man by Mini clown September 14, 2020

grumpy gabe

a grumpy gabe is a person who is always upset and always wants to ruin other people's days

Person 1: wow that girl is so cute
Person 2: um don't you have a boyfriend
Person 1: don't be such a grumpy gabe

grumpy gabe by deputy_cute_stuff November 17, 2020

Grumpy Customer 

A really big dump, that may or may not be currently slamming against your rectum.

Hey guys, I'd love to help you, but I've got one hell of a grumpy customer right now. It requires my full attention.

Grumpy Customer by walrusnuts November 18, 2020

grumpy steve 

A local Vermont term for groundhogs (also known as woodchucks)

I have to trap all these grumpy steves before they eat my whole garden.

grumpy steve by M Valle January 10, 2021

Grumpy Garfield 

A Capping, pussy

A hedgehog got messaged by a Grumpy Garfield

Grumpy Garfield by ProLancer2351 June 28, 2021