Grunny (NOUN) - A fictional animal on GaiaOnline.com. Name is a combination of "Green" and "bunny" which describes the grunny's appearence. Grunnies carry a poison that, when injected into humans through a bite, can make them into Grunny Zombies (Grombies)
Member1: OMFG there's a grunny on your head O_O
by Nanaki001 November 10, 2006
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A green zombie rabbit that was injected with the G virus. If you get infected by many of them, one will sprout up out of your head (from gaiaonline.com)
All hail Lord Grunny and his green rabbity-ness
by D. Marie August 7, 2006
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youre a grunny ball
by owen November 18, 2003
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something that is equally gross and funny.
person 1 : did you see when that guy made milk come out of his nose when he couldn't stop laughing?

person 2 : hells yes! that was mad grunny!
by alexa is BOMB November 12, 2007
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A slothlike creature, often found in front of a computer.
by I'll never tell February 29, 2004
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A case of diarrhea. The shits. The runs. Originated in Aroostook County in Maine.
Man, the food from that Chineese Restaurant down the street is terrible! I had the grunnys all night.
by defenestrator March 23, 2005
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