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A particulary difficult yet ultimately satisfying bowel movement.
That was a hell of a grump I just took.
grump by meempants September 6, 2002
Related Words
“A mythical Creature so elusive that to actually see one would bring untold good fortune” referenced in the movie One Week
I’m going to ride my motorcycle across Canada in search of Grumps
Grump by I_M_CDN November 17, 2010
1) the disposal of a bad attitude or exceptionally grumpy perspective. 2) The byproduct of general grumpiness
agitated venting girlfriend: "We never do what I want to do! We always go to all the stupid bars YOU want and hang out with YOUR friends and...OMG these pants dont fit me anymore?!! FML"

boyfriend: "wow...sounds like someone needs to take a grump"
grump by tfortso January 18, 2011
To add an entry on Grumper.
I posted a grump today at Grumper.org, check it out!
Grump by Asyra June 10, 2009
To take from, either Violently, Sexually, or Passively
1. Im gonna grump that bitches V-card tonight when shes wasted.
2. Im gonna go grump some fresh chipolte
3. Im going to grump your life on Call of Duty 4.
Grump by fresh grundle December 15, 2008
A poo that requires a minimum of 10 wipes or 6 wipes + 1 cottonelle.
Oh man, i gotta get to the bathroom and grump before Im sittin in a puddle of mud.
grump by JGLOW June 19, 2009