Grundle is another word for chad: the region between the balls and the arse-hole; can be an erogenous zone for some.
Girl: I was fingering that part between his balls and his arse and there was shit there.
Everyone listening remained silent but later laughed among themselves:
'Eww! He had a shitty chad.'
When you measure your dick, you don't start at the arse-hole and include the chad; you risk getting shit on your measuring tape.
A noun used to define the stickybuild up found underneath the scrotum. Build up increases when the persons doesn't shower or has had hot sweaty day.
Person 1: Yo J-Kwon, take a wiff of this.
Person 2: Damn! What the hell is that on your fingers.
Person 1: I haven't showered in days, and that's some of my wicked bad grundle build up from my fat ball sack.
That chip is going to make you car a grundle load faster.
By Modestine
Grundle
The trashiest excrements of trailer park septic tanks, which, when mixed with crack-cocaine form into an American of sub-average intelligence, and are of the lowest societal and economic standing possible, ever.
Is that grundle pregnant, again? Shoot, it looks like her dad forgot to wear a condom, again.
By Hazel
Grundle
The simultaneous occurance of every humanly imagineable bodily function (i.e. ejaculation, weeping, defecation, urination, hemorrhaging, perspiration, sneezing, coughing, drooling), resulting in both severe pain and unparalleled pleasure.
In loving memory of Jacob Anthony McCormick, who deceased this past Monday, December the 6th, 2005 from an unexcpected, fatal grundle. God rest his tormented soul and mutilated body.