Pronunciation: Grum-pee. The act of breaking wind; flatulence. A slang term for having particularly foul smelling gas; a nasty stinky fart.
1) Dude, who busted that nasty grumpy.
2) He floated a grumpy in class. Stunk so bad even the teacher left.
3) I suppose if I have to I can live with Bill's farts, but when he floats a grumpy it makes my eyes water and I have to draw the line
by lost in Iowa April 02, 2009

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slang term for the act of defocating.
Dude! don't go in there... I just took a grumpy man!
by Ragnar October 24, 2002

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1. An imaginary disease that causes one to be uncontrollably emotional.

2. A word used when you can't excuse your bitchy behavior with "I'm PMSing" because you used it a week and a half ago.
I'm sorry I snapped at you today, I just have a bad case of the grumpies.

by Evelynne November 30, 2007

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ugly, nasty, untasteful, somthing that doesnt look right
Dem clothes is lookin GRUMPY!!!!
by Khalil James May 09, 2008

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A turd left for someone else to find, either in an unflushed toilet or in a more creative location.
The manager made me stay late and clean up, so I left a grumpy in his desk drawer (or the sink, or the coffee maker, or the printer, etc.).
by OldOllie February 23, 2010

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act of dumping in toliet and not flushing, resulting in a pleasant surprise for the next user
I left a nice grumpy at my girlfriends house, it was classic.
by blahblah March 13, 2005

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Greedy young urban professionals.
The grumpies told the reporters that they knew they were overleveraged and they didn't really care; they were proud of it. They wanted the leveraged lifestyle now; they deserved it and they would do whatever it took to get it.
by Elise Miller October 14, 2008

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Taking a shit, dump. etc;
I need to take a Grumpy
by Micah#1 June 10, 2008

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