Grumpter 

Grumpter-When you fart and it travels up to that pooswatcha because your pants are too tight and it is released...

-a queef that started out as a fart

That fart turned into a grumpter because her pants are too tight!

Grumpter by Sheryl Buzzard February 5, 2023

grumptard 

A grumpy and retarded person

Channa says Peter is a grumptard all the time

grumptard by PitaBread January 20, 2008

Grumper 

An especially hot and steamy shit. Grumpers often leave you very sweaty and exhausted. They're mostly taken under less than ideal situations like port-o-johns and bar bathrooms.

Man I was tailgating on Saturday and I had to shit some fierce. I went to the port-o-John and dropped a fiery grumper. My asshole was never the same.

Grumper by Alexdlegit March 25, 2017

Grumperson Jones 

An extremely grumpy, cranky, or unhappy individual.

Watch out, Greg is a Grumperson Jones today!

Grumperson Jones by Emily Jones-Parker July 28, 2010

Grumpler 

A man over the age of 40 who has a natural and constant "grumpy" facial expression which can be emphasized by dark rimmed safety or reading glasses. Grumplers may also possess other unnatural bodily characteristics such as a slightly hunched back and/or a reverse pigeon-toe stance.

"Stop being such a Grumpler!"

Grumpler by Keebler89 January 14, 2010

Glumpter 

Anything your heart desires

Can be used as a noun, verb, adjective, adverb, pronoun, preposition, conjunction, interjection, or numeral.

Ex.

“Woah! Sandy just gave him that glumpter grip!”
“Last night David made a glumpter shot in pool!”
“You should’ve seen it! There was about glumpter deer in front of my car!”

Glumpter by Tshchlerky January 8, 2023

Niagara Grumper 

An explosive shit. Comes pouring out of your ass with seemingly no end to the flow. Like a hot waterfall of shit.

I ate some bad oysters last night and today I experienced the worst Niagara Grumper. I couldn’t get off the shitter.

Niagara Grumper by Eaton Holgoode January 25, 2018