The perineum on a human male. Located between the scrotum and anus. Aptly named after the hairyness of the Grendel monster from Beowulf and a young polishman's genitals. Originated in Jessup Maryland circa 1994.
by Double Bs July 13, 2016
Protection of the patch of skin between the ballsack and butthole (grundle) by way of plastic or rubber inserts. Often attacked by hands or genetalia.
by GroupB May 5, 2014
Bruce was getting an old fashioned HJ and Stacy wanted to speed things up and gave him the old Grundle Knuckle to help him cum more.
by DanielleWhittier May 5, 2023
Grundle refers to the balls chode and dick as a whole ... When abraded or abused it becomes a chafed grundle !
by DoggWood November 20, 2015
Referring to the potency of an individual's grundle at any given point. Grundle game is produced, and at it's peak, after a sweaty workout with da boyz.
by Furdaboyz June 16, 2017