Bust a Gruppy 

To deficate or take a shit in someone else home

"Can i borrow you toilet, I have to bust a gruppy."

Bust a Gruppy by BubbaFat March 10, 2010

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

Bust a Grumpy 

Most commonly used in reference to flatulence. Specifically refers to the act of expelling acutely pungent methane gas out of one's butt.

It was the combination of 3 large bean burritos, 2 Red Bulls and a large pickled ghost pepper that caused Jordan to bust a grumpy.

Bust a Grumpy by Mr. Spicer May 24, 2014

Bust A Grumpy 

Passing a large usually unwilling stool that is rocky hard and very large.

Joban: I gots to go bust a grumpy before i shit my pants.

Jovan: Make sure you dont miss the bowl again.

Bust A Grumpy by A little hack magic July 8, 2010

Bust a grumpy 

having to take a crap.

Dude, I have gotta bust a grumpy.

Bust a grumpy by bezel333 December 31, 2005

Bust a Grumpy 

The act of farting extremely loudly and abruptly.

Damn bro did you just bust a grumpy? I can smell it all the way over here!

Bust a Grumpy by Snowfakee November 12, 2012