the act of placing one's coin purse (ball sack) under a friends nose while laying your man meat upon the bridge of their nose; makes for a great prank while a friend is sleeping.
Last night while wes was fast asleep i performed the perfect grundle without him knowing, what a huge blumpkin he is!!
by bobaganoosh October 9, 2005

by Heather November 2, 2003

the nasty, sweaty, hairy, smelly, juicy, luscious, tastiest part of the body which lies between the cock+balls and the arse.... hey ladies-(it feels really good wen you lick it)
by Steve-yeh-yeh-theman June 12, 2003

Its your Nacho Area. No cheese...
by Sweety McSys April 13, 2005

1. Wrinkley Crinkley upside-down valley of skin, containing hair, between the cooter thing and little anal guy.
2. The Grundle Game; the act of randomly punching people's grundles;
Grundle Punching.
2. The Grundle Game; the act of randomly punching people's grundles;
Grundle Punching.
Eric Johnson and I punch each other's grundles, and share a mutual love and bond; Sometimes we play "Crotchball" and have to ice our grundles.
by Playa Seventh April 11, 2004

the flat yet hairy surface between the scrotem and the anus--sometimes i become stinky from a physical activity.
by grundle October 3, 2003
