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)
by Nanaki001 November 10, 2006

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)
by D. Marie September 09, 2008

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!
person 2 : hells yes! that was mad grunny!
by alexa is BOMB December 06, 2007

Grunny likes to IM.
by I'll never tell February 29, 2004

by defenestrator March 22, 2005

Man, the food from that Chineese Restaurant down the street is terrible! I had the grunnys all night.
by defenestrator March 22, 2005
