grundlebuss 

someone who has sex with a twinkie, and then squeezes the cream out using their legs.

I walked into my boss's office and saw him the riding the grundlebuss, upon him noticing me he squeezed his legs and deflated the twinkie in nervousness, i immediately left.

grundlebuss by chrisalyss September 6, 2009

Grundleburst 

An awesome band. They rose to fame with they're number 1 hit song, "2 Cool 4 School". Their songs are generally recorded in one take around a single mic, and often improvised (though sometimes based off of snippets of magnetic poetry. The members are as follows:

Mick Furgn: Vocals
Nick Schweinstegger: Guitar, backup vocals
Max Sven III: Kazoo

Their first album, released in 2006, was called Imagine Shlock, and was recorded on two non-consecutive afternoons.

I just listened to Grundleburst's debut album Imagine Shlock and it was so good.

Grundleburst by max sven III August 10, 2006

grundle brush 

a tooth brush like device used exclusively to remove crust from one's grundle and can be used as a derrogatory insult towards someone

dude! i totally switched my grundle brush for this guy's toothbrush!

OR

senor badass is a grundle brush for not being creative

grundle brush by meatyhandboy October 11, 2006

grundlefresh 

A freshness only comparable to the same wonderful taste and smell as the grundle region located between your scrot and chocolate starfish.

Guy 1: Man, every time that girl comes back from lunch she has such wonderful grundlefresh breath.

Guy 2: Dude, thats because shes blowing the boss in the hotel across the street.

Guy 1: Ah, that makes sense!

grundlefresh by pooperfeeder04 May 2, 2006

GrundleBus 

The preferred method of getting from point A to point B, provided that point A is the Asshole and point B is the Ballsack; most often used by homosexual males

Man 1: I plundered Mikes asshole yesterday, then I tickled his scrotum right after
Man 2: How'd you pull it off so fast?
Man 1: Easy, I used the GrundleBus

GrundleBus by The Captian May 5, 2015

grundle brush 

A goatee, mustache or any facial hair.

Dude, don't trim your grundle brush 'cause you know I don't like it all prickly!

grundle brush by D.S.B. November 27, 2016

grundle brush 

one who enjoys licking the grundle

Andy Bond

see taint thinner

grundle brush by Senor Badass March 27, 2004