Grumpkin 

The seam-like ridge of skin that appears on the scrotum of male animals.

Man, those bikes shorts totally chafed my grumpkin.

Grumpkin by Evil Scott December 19, 2008

Gumpin' 

Being filthy stinking rich and having a mediocre job.

Did you hear the Marquis DeBonère works at McDonald's? Ya he's Gumpin' large.

Gumpin' by Skyfloss December 5, 2016

Gruppin 

Getting your belly button touched without consent.

IM GONNA GIVE YOU A GRUPPIN SIR

Gruppin by Nakisnax October 20, 2019

Gumpin' It 

The Act Of Waiting At A Bus Stop While One Sits His, and/or Her Posterior Structure Onto A Nearby Bench, Lookin' Like One Douche Of A Gump.(see. Gump)

Some Dude: Yo Man Its Been Over An Hour, Where You At?

Smokey SellsALOT: My Bad Dawg Im Stuck Here Gumpin' It At This Bus Stop.

Some Dude: You Douchebag!

Gumpin' It by Boondocckkkkk November 12, 2007

reverse grumpkin 

when a person sitting on a toilet taking a shit gives oral sex to someone standing in front of them

yeah i got a grumpkin then gave her a reverse grumpkin

reverse grumpkin by Bradford, PA March 18, 2011

reverse grumpkin 

Same as a a grumpkin...A girl is taking the shit while the guy eats the girl out!

man! that was a good reverse grumpkin!

reverse grumpkin by Joe Davis September 11, 2003

grumpit 

A noun that can be substituted to mean mostly funny things.

Is that a grumpit in your pocket or are you just happy to see me?

The bathroom is now wall papered in explosive grumpit.

I see a little grumpit between your teeth.

Did you just grumpit?

grumpit by Dr. Patrice Coleman, UCLA May 31, 2010