With the standard definition of grundle being the space between your ass and balls, any bundle associated therin must refer to the old kak n' balls.
That chap's pants were so tight you could see on which side he hung his grundle bundle.
by B. Peters August 23, 2005
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Another name for a mans cock and balls, or...
When a gay orgy is in progress one takes a handfull of a mans section between his anus and balls and bites it.
by Meow Mix December 28, 2004
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Two girls residing in Southern California embraced the name grundle (slang for taint) after a group of people constantly called them it and now refer to themselves as the grundle bundle because there is more than one of them. They are often characterized by their oversized, overworked vaginas, rotten jack Daniels loving livers, brittle bleached hair, and their constant need to try fighting people. When within a mile of them you are likely to smell cat feces and abortion discharge.
Did those girls have names? No, they just go by grundle bundle.

Do those girls know what they're saying when they refer to themselves as grundles? They don't care because they're the grundle bundle.
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Small pieces of "shittles" caught in your grundle.
Due to the lack of wiping my ass properly, I do believe some grundle bundles have formed.
by Hordee January 16, 2006
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When one man is in the downward dog position, another man approaches from the rear in a crab walk inserting each other’s penises into the reciprocating anus, while relocating testicles to one side allowing for maximum grundle on grundle contact.
Hey man, the wife ran to the grocery. Think we got time for a double grundle bundle?
by Man Bun Overall Guy September 3, 2020
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