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.

by Eaton Holgoode January 25, 2018

Grumpatron

A grumpy person, or a state of grumpiness that comes over a normal person; causing the afflicted person to make snappy rude remarks and become very unsocial.

Ryan won't go to the movies because he's a grumpatron, and nobody likes his company anyways.

by Xumill January 21, 2010

Grumpelstiltskin

a play on the name of the dwarf character in the classic Grimm Brother's fairy tale which is used to label someone who is pissed off for an insignificant reason

use this term to further aggravate someone who is already excessively angry for unimportant reasons; personal amusement comes from watching the Grumpelstiltskin become more angry and frustruated upon being called this name

Sally(angry and irrational): OH MY GOD! Someone ate all the Special K! I'm gonna f'n kill someone! All I wanted all day was my fucking cereal! I HATE THIS!!!

Sarah(calm and cool): Simmer down, Grumpelstiltskin.

Sally: Fuck you! I hate you, you cock-juggling thunder cunt!...(continues to yell and scream and hate on Sarah)

by Jessie L June 13, 2007

Grumper

A very humorous word for poop.

Damn it, I just stepped in the biggest pile of grumper!

by benwad934 March 30, 2004

grumpster

n. similar to dumpster, but instead where happiness goes to die
n. a person that sucks the life out of the room no matter how hard you try to cheer them up
n. dark pit of despair, a black hole of unhappiness, a vacuum that sucks all hope and joy from the vicinity

MD is a grumpster because he will suck all your happiness away.

by JitteryJoe July 27, 2008

gumpet

Another word for vagina, mutt, clunge

" Ah boys nice bit of gumpet coming here"

by Claphams back April 19, 2018

Grumpenis

General irritability, or GRUMPINESS, from a lack of sexual release or satisfaction. Can also be the cause of anger, short tempers and volatile behavior. Long bouts with Grumpenis may cause depression in some men.

It is recommended that Grumpenis be relieved with the use of a slumpbuster, twice daily, for a length of 10 days, if possible.

I haven't gotten laid in a month and my grumpenis is really starting to effect my overall mood.

by 73dart_swinger June 30, 2010