1.A stain that can't be identified in one's shower or toilet.
2. A large messy fudge dragon left in a clogged john.
1. "Jesus! What's that funky green grunk around the tub drain?"

2. "Damn, I just left the nastiest grunk in your porcelain thrown."
by Niffer and Shaun December 1, 2006
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random 17 year old on the internet, isaacwhy, softwilly side character.
grunk is the worst groupchat podcast member
by eepers July 13, 2022
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Grunk is defined as the shortening of the phrase 'grabbable chunk', when talking about lovehandles, or the part of your fat content that can be grabbed more than pinched.
Carmen's got alotta grunk in that trunk.
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Derived from the latin grunkinos and loosely translated into English meaning grubby junk.
After the heavy rain and driving through the country my vehicle was covered with grunk.
by Merriam-Wedster May 3, 2003
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indie/grunge/punk/rock

comes from: grunge+punk=grunk
Grunk music is a type of music using indie/grunge/punk/rock: ie: free state prophets
by GEMSY August 17, 2006
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When you accidentally nut while you are talking to friends or family
Shit I’ve just Grunked myself”
by Willbo baggings February 19, 2018
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