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1.
a debilitating and humiliating chronic illness which inflames the area known as the grundle...characterized by inflammation and pus-like discharge which is known to smell of a turd covered in burnt hair
when i sit, i sit in a tractor inner-tube due to my grundelitis...
by miles long May 11, 2005
 
2.
A rare disorder, in which case, a large fart-like noise is produced upon the process of inhaling through the nose.
OMG.... did you hear Daniel Carnie has grundelitis. Everytime he breathes i put my hand over my nose as a reflex.
by Haviv And Kenny August 23, 2004