grundle slap 

when a man stands with his legs spread a bit and swings his ball sack so that they slap his grungle area.

i dared my friend to do something embarrassing and he pulled his pants down and showed me the grundle slap.

grundle slap by James Hill January 17, 2008

Grundlescaper

1. Someone who manscapes other people's grundles

2. A bottom feeder, degenerate or one who should be thrown out of windows at high elevations

Jay P needs to get the kids in line, they're talking out of turn and you already know that the grundlescapers are going exploit the stupid shit that's coming of Kaplan's mouth to stoke the flames and feed the animals at the zoo... Don't feed the fucking animals...

Grundlescaper by Felix of Nazareth August 27, 2020

grundlesnaps 

Crystally, clinging bits of sweat and various fluids that form on the pubic hairs. Differentiated from dingleberry in location and composition.
May be used as an insult or medical complaint.

Nothing is as aggravating as losing a ball-hair to a persistant grundlesnap.

grundlesnaps by Whitebird May 13, 2005

grundleslap

A guy makes his pants tight so that the area above his dick if firm (usually by sitting down, you know what i mean) and then slaps it with his hand, in what would seem to be painful but is completely not.

I grundleslapped you mom last night

grundleslap by xhollywoodx January 13, 2006