take a grumpy 

The act of having a bowel movement.

You better pull over, I need to take a grumpy.

take a grumpy by mangus May 24, 2004

Punching a grumpy 

The act of speed shitting when you are pressed for time.

As we approached the gate for our flight, Earl ran off to the restroom and was punching a grumpy.

Punching a grumpy by Punchline67 May 3, 2006

Taking a Grumpy 

A fun way of saying you gotta poo.

Hey old gregg! Im taking a grumpy!

Taking a Grumpy by Khlidy May 24, 2019

Punch a Grumpy

The act of taking a really mean dump.

I actually have left partys because I had to "Punch a Grumpy"

Punch a Grumpy by Vegas March 23, 2003

Bust a Grumpy 

The phrase "bust a grumpy" is used to refer to anything that is excreted through the anus, including both gas and feces. To properly bust a grumpy, one must abide by the following rules:
-Claim that he or she is going to "bust a grumpy"
-Excrete something (be it solid, liquid, or gas) from the anus.

Tom:"Dude, I'm gonna bust a grumpy!"
Walter:"Oh, no! Wait!"
Tom:*Farts*
Walter:"Oh, man! Everybody watch out, Tom's bustin' grumpies!"

Bust a Grumpy by Losgunn February 4, 2008

bust a grumpy 

To have to go number 2.
To poop.
To make naughty water.

Brennen had to go bust a grumpy, becuase he'd tried to move and built up enough bodily waste to kill an elephant.

bust a grumpy by RevStan January 9, 2004

Ripping a Grumpy 

Verb: to rip a grumpy is to wait until the last second to shit, almost ripping off your pants button, and laying down the meaniest, "Grumpiest", shit you have ever taking in you life into any recepticle.

Mike: Tom, what were you doing all of 8th period?
Tom: Dude, I had to rip the meanest grumpy ever.
Mike: Damn, You were Ripping a Grumpy for 40 fucking minutes?
Tom:Yeah (*sniffle sniffle*).
Mike: Did it burn?
Tom: Like a Mexican man with gingivitis, and with his ass stuffed with jalapenos.

Ripping a Grumpy by UnholyFrostbite October 21, 2009