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 22, 2005
Top Definition
An alternate spelling of the grunnys.
I can't eat cheese. It gives me the grunnies.
by defenestrator March 22, 2005
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