Grumper

Any toilet, outhouse or fecal collecting area.

Drew just laid a lincoln log in Cab's grumper.

by Phartman February 28, 2013

Grumper

A decorative bumper commonly found on Jeep Wranglers that combines a bumper and grill. A must have bolt on part for any JK mallcrawler with 20"+ wheels that wants to distinguish themselves from the standard "Angry Eye" jeep.

"Kyle just dropped $1500 on that new Fabfours Grumper, friggen shame he he didn't spend it on lockers, eh? "

by Hokenstad July 30, 2019

Grumpers

Queen of the Jews annn'er fuckin' cheers up. Reeks the fuck of bad fuckin' attitude. It loves itself some purple and turns out ta be fuckin' latino! All it wants to do is grump, which earns it some lovin' from its UMR fam. Lastly, it has been known to wreck a FREC or two in her time.

Grumpers Grumper FREC Purple Latino Latina Attitude

by I am an Oil Man February 5, 2010

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

pump a grumper

to take a huge hard dump

damn im never gonna hti a mexican buffet liek that again, i had to pump a grumper really bad ten minutes later

by collinD May 30, 2006

join grumper

a join-grumper is usually a normal looking man who does something inexplicable to other men.

arif khan (at the weekend)

by preston outatime March 22, 2005

Punched Grumper

N, V, Adj. - Anything or anyone involved in shits of an insidious nature.

Noun - "That kid is the epitome of a punched grumper."
Verb - "Oh shit, dude. I gotta punch a grumper."
Adjective - " That bitch burnt me worse then that punched grumper from KFC last night."

by The Grump Puncher December 16, 2008