Top definition
(verb) The act of vigorously passing a particularly stubborn bowel movement. Usually involves grunting and the straining of one's sphincter. See also: Constipation
I hate when I'm in the bathroom at work and someone is grumpin' out a gnarly deuce. Gross...
by SneakyMe August 26, 2011
Get the mug
Get a Grumpin' mug for your cat Zora.
2
grumpin is the slang term for actively making yourself grumpy(to the extreme)
grumpin comes about while talking to Asians about big trucks, and fast cars (besides Toyota MR-2's)
by Bryan Harving October 18, 2007
Get the mug
Get a grumpin mug for your friend Beatrix.
3
A person in the act of or a participant of farting in bath tub. pool or body of water and catching tainted bubbles in mouth.
A person sets in bath tub lets one loose and bends down to catch fart bubbles in mouth. - Grumpin -
by KSWingNut January 15, 2011
Get the mug
Get a Grumpin mug for your papa Callisto.
4
(verb) The act of vigorously passing a particularly stubborn bowel movement. Usually involves grunting and the straining of one's sphincter. See also: Constipation
I hate when I'm in the bathroom at work and someone is grumpin' out a gnarly deuce. Gross...
by SneakyMe August 31, 2011
Get the mug
Get a Grumpin mug for your mom Rihanna.