grundle smack

When you are boning a girl, and your sack slaps against your grundle (also taint, gooch, or chode).

Dude, I was boning this girl last night, and her brother was awakened by the sound of my grundle smack.

by matt steve josh May 15, 2006

Grundles

Underpants, Underwear, be it Boxers, Briefs, Thongs, high rise, low rise, cotton, rayon, or polyester.

Grundles is actually short for grundlemires, as panties is short for underpants.

If you cut somebody off in traffic and they start flipping you off or shouting obscenities, simply say "Hey, don't get your grundles in a bundle, pal."

by Sara B Ellum December 22, 2010

Grundle Surfing

When you're having sex with a girl and you pop out, but try to get back in without using your hands, resulting in sliding on her grundle continuously, or surfing.

Man, I was fucking her and slipped out, but I was too lazy to use my hands so I was just grundle surfing for a bit until I got it back in.

by JiffyPop69 October 8, 2010

grundle grease

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.

I need a shower. My grundle grease has gone sour.

by wolfbait51 November 25, 2011

reg grundies

Australian slang for underpants.

Dont forget ya Reg Grundies mate.

by Matoman February 18, 2017

Salting The Grundle

The act of pissing at the sky and trying to land it on the area between one's anus and genitals, commonly referred to as the grundle.

I would put on a pair of pants, but I just finished salting the grundle

by tromastuh February 7, 2019

grundlebeard

This would be the pubic thatch.

Lol, your grundlebeard is all up in there.

by 31d1 September 19, 2005