An oily sebaceous substance secreted from peri-anal musk glands to lubricate the grundle and attract females.Turns rancid in a matter of days but is essential for fluid walking motion in that it reduces the friction between the butt cheeks.
by wolfbait51 November 25, 2011
Get the grundle greasemug. by protocoldroid June 18, 2004
Get the grundle greasemug.