something that is equally gross and funny.
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!
by alexa is BOMB November 12, 2007
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A slothlike creature, often found in front of a computer.
by I'll never tell February 29, 2004
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A derogatory slur for people who wear diapers and diarrhea in them
“Damn look at that grunny over there… they’re kinda hot tho… I’d let them grunny in my diaper
by GrunnySlurper3001 January 3, 2023
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Her sweater was really grunny and poorly made
by KAMIKAZE0 October 10, 2021
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When you shit in someone’s toilet and don’t flush while they are out of town and leave it to rot until the homeowner returns
Andy got mad at his uncle for yelling at him for stealing his credit card and using it on 1-800 phone sex numbers while his uncle was out of town, so Andy made a Grunny in the toilet before he left the house to show how ungrateful he was for the money he stole.
by TBone420 October 13, 2020
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