Top Definition
The terrible and unpredictable form of diarrhea you get after a long night of smoking and munchies.
dude, those dorritos and pot gave me the worst case of ganjarrhea
by shaw-izzle November 27, 2007
The having of diarrhea after digesting large quantities of ganja
I ate 5 brownies last night and this morning i had some bad Ganjarrhea
by DJ FLUXIN April 18, 2011
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