undie grundie

The act of inserting a finger or thumb into an unsuspecting victims anus through their fresh new underwear, thus causing a permanent poo stain. If done in a forceful manner, blood stains may accompany the poo stains.

Paul surprised Steve with an undie grundie...a large fight insued.

by Mutato January 30, 2008

grundel

the space between your balls and your ass

My grundle stinks after a game of lacrosse

by joe March 10, 2003

grundle duckling

When your buddy is passed out and you glue a duck bill to his GRUNDLE. When he awakes and tries to walk the duck bill will wiggle and bite the back of his sack causing him to fall to the ground and yell, SHIT!!! The grundle bites are attacking my sack!

Billie bob (bag of donuts)Yooo Johnnie, let's give Todd the GRUNDLE DUCKLING he is passed out.
Johnnnie, sweet I got a duck bill handy!
Billie Bob glueing, glueing
5 hours later...
Todd awakes and tried to walk to the bathroom and falls over in pain holding his package...
Todd.. CRAP the grunts are attacking my SACK!

by ass hammer December 3, 2006

Your Grounded

The dreded words out of a parents mouth.

The porcess -
1.Parents Make up some BS thing.
2.Big argument
3:YOUR GROUNDED!!!!11oenoneelevetyone

by Woot October 7, 2003

grundle

the area between one's scrotum and anus.
the real thing. "Gooch" can go to hell

by KinCryos August 8, 2003

Groundhog Diet

Refers to someone who says they will start their diet next week, tomorrow or a specified date.

Example 1
Person 1: Here have a cupcake
Person 2: I just started my diet, but it's ok I'll start next Monday

Example 2
Person 1: I'm getting fat, I'm going to start my new diet as of tomorrow
Person 2: You said that last week. Is that the Groundhog Diet?

by rr11 May 22, 2014

Groundhog Sword Fight

A Groundhog Sword Fight is when two severely constipated individuals shit half way in a sword-like fashion and compete to paint their opponent’s ass brown.

Zac: Give me back my lollipop Justin!
Justin: What are you going to do about it?
Zac: I challenge you to a Groundhog Sword Fight.

by Quadaplex January 16, 2018