Top Definition
THe nasty build up of sweat and fungus when someone doesn't wash there grundle
Listen here ya damn hippie, go wash your grundle, I can smell that cheese factory from here
by Cutshaw Jr. February 22, 2005
The moldy orange stuff Bill takes off Newman's grundle and puts on his ham sandwiches. It smells like rotten cheddar mixed with ear crust but Bill still eats it.
Bill quote: "Hey Newman open your legs up so I could get some grundle cheese. I'm makin grundle cheese tacos for breakfast."
by sLicK 2 thA bOne March 08, 2005
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