Grundel 

1. (n.) The area of skin between the anus and the genitalia in either sex (see also 'taint)
2. (v.) A complex variation of "mooning" in which one applies the flesh of one's bare buttocks (usually the hairier buttocks of the male) directly to the face of the victim, especially when the victim is seated on the floor and distracted. To apply one's buttocks to the back of the NECK of someone seated on the floor is known as a "reverse Grundel."

I was sittin' on the floor playing "Fight Night Round 3" when Jeff Richard came in and gave me a reverse Grundel! I had to scrub the back of my neck!

Grundel by Darryl X. January 7, 2008

Grundel 

The section of skin between the beginning of one's asscrack and the ending of their sexual organs.

"Yo homeskillet, I was twanging on this hoodrat's grundel last night and her fuppy dislodged and knocked me out cold."

Grundel by Tmurda November 27, 2002

Grundel 

A thot that doesn't know what a thot is, yet uses it all the time during sex.

"That grundel is so bad, she fucks like 5 guys a week but claims she is normal." said guy number one.
"I know right, she kept calling us both thots last night in bed." said guy number two.

Grundel by TheNigerianChad February 9, 2018

grundel 

A grundel has two definitions:

1. An area of skin between the legs and also between the anus and the sex organ.

2. A Combative, authoritative, pompous, superficial individual who is prone to overgeneralize topics and predisposed to utilize fallacious logic to further an argument.

Man #1: Oh shit grundel Bob is coming over here, he's such a grundel!
Grundel Bob: You guys look like pussies, ya wanna fight?

----
Man #2: Man, here comes grundel Bob again. All he wants to do is fight.
Grundel Bob: You guys look like a couple of homosexuals, I can tell based off your haircuts. Ya wanna fight?

----
Man #1: Grundel Bob, why do you keep starting fights? You're such a grundel!
Grundel Bob: Well I could say the same thing about youuuuu.

grundel by bubbert November 26, 2013

grundel 

synonmys:gooch chode

skin between ass and balls

whats the thing that hangs down... a grundle

cory likes to show his grundel to men

grundel by poop November 16, 2003

grundel 

The nether-regions between the balls and the ass

When I play basketball, my grundel butter begin to melt and drip.

grundel by Anonymous March 17, 2003

grundel 

the no region between your ass and your balls

Frank Johnson has sweatbead races down his grundel

grundel by Anonymous October 30, 2003