Slight spin-off of the creature Grendel from the epic poem Beowulf. Basically, a Grundler is the filthiest beast ever imaginable that lurks in your basement. The Grundler is actually an overweight man and has a rancid beard. The Grundler lurks in the shadows waiting for the opportunity to "bag-and-tag" a helpless victim.
1. The boy ventured into the dark basement to find his favorite toy when he was "sacked" by the Grundler and taken away to the Grundler's cave.
by It's Tradition...Doin' It! Tame the Flame. January 12, 2005
A Dirty Grundler is a certain kind of storyteller, known for telling tall tales and spreading false facts with a deadpan, straight-faced delivery, indistinguishable from if they had been completely serious and in earnest. A Dirty Grundler isn't a liar, per se - they aren't attempting to deceive anybody, just entertain.
A: Ray told me this is the longest saltwater river in North America!
B: Dude, Ray's a Dirty Grundler, there are no saltwater rivers in North America.
B: Dude, Ray's a Dirty Grundler, there are no saltwater rivers in North America.
by Lagarto Del Mar January 3, 2019
by Dirty_Hairy84 February 8, 2021