Grundaberries 

Men's briefs. Derived from "Reg Grundies" - Australian slang for undies or underwear - and from the concept of storing your berries (testicles).

Also known as sluggos, or budgie smugglers.

These grundaberries are too tight. I hope it doesn't affect my sperm count.

Grundaberries by Honeycut February 6, 2009

grundleberries 

The little clumps of shit that gather in the hair by your asshole when you dont wipe it properly

You should check for grundleberries every now and then

grundleberries by ImTooOldForThisShit January 21, 2006

grundelberries

Also known as dingleberries, grundel berries are the remniants of poop that have attached to the grundel hairs during the course of wiping oneself after taking a crap. BEWARE: Grundel berries can become very itchy!

When I was younger, my mother always told me, "Make sure to wipe thoroughly to avoid those grundelberries!"

grundelberries by Pat Crosby June 10, 2008

grundleberries 

When sand, gum or dingleberries are stuck in the hair between your testicles and anus.

She said my grundleberries taste good.

grundleberries by eibs April 22, 2009

grundleberries 

the things hanging between a guys legs, aka testicles

Folgie passed out when he got a kick to the grundleberries

grundleberries by steve-o- March 31, 2005