The little pieces of pooh and underwear lint that get caught in the hair around your anus.
My Grundles were making me itchy, so I picked them off.
by Bud Green February 7, 2004
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a breakfast sandwich usually consisting of sausage, egg (at least what the government tells us is egg) and cheese on a bagle or english muffin
oh snap! today is grundle day! I'm getting breakfast
by Rimmer April 7, 2005
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1. The small particulate matter or shake that remains in a stash of marijuana once all of the larger "dank nuggets" are gone.
2. (In male human anatomy) the area between the scrotum or ball sack and anus or butt hole respectively. Also commonly referred to as the taint.
1. Dood grundle is like smoking dust.
2. When I wrecked my bike the seat hit me right in the grundle.
by Sea of turds January 5, 2011
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A whole shit pot full. A whole shit load. There is a grundle of things I do not need.
by klitster January 29, 2009
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Grundles are brown cave-dwelling creatures from the My Little Pony movie. They look like monsters to most people, but, as they constantly reassure Baby Licketysplit and Spike the dragon, "Grundles good!" They are helpful, friendly creatures. Interestingly, Danny DeVito played the Grundle Leader in the movie.
Grundles not monsters! Grundles good!
by Jezani May 10, 2009
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Underpants, Underwear, be it Boxers, Briefs, Thongs, high rise, low rise, cotton, rayon, or polyester.

Grundles is actually short for grundlemires, as panties is short for underpants.
If you cut somebody off in traffic and they start flipping you off or shouting obscenities, simply say "Hey, don't get your grundles in a bundle, pal."
by Sara B Ellum December 21, 2010
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The best dining hall at the University of Vermont. When you're hungry the grundy is always there with some pasta and marinara. Lovingly named after the area between a mans asshole and his nutsack, the gooch, if you will.
Stoner #1:"Hey broski you wannna hit the grundle?"

Stoner #2: "Yeah I hear they got nuggies for late night tonight."
by sirben_ December 31, 2021
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