Grumpkin 

the act of shitting while recieving fellacio

man she sucked me dry while i dropped a loaf!

Grumpkin by dirty sanchez June 14, 2003

grumpkin 

A sex session in which one sits on a toilet taking a shit while another person gives the shitter a blow job

" Dude you gave a great grumpkin last night"

grumpkin by Yanni's Flamboyant Friend December 24, 2002

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

grumpkin 

one of a variety of individuals, who is bubbly like a volcano, snuggly as an antitank mine, and enjoys hillsides of cabot extra sharp cheddar cheese. as much as any such individual can enjoy such things, which is quite an excessive amount.

"Antitank mines always have to be stabilized before you grab them. This is why I kiss you at the same time.What a grumpkin!"

grumpkin by J Jayma Jameson August 16, 2011

grumpkin 

When Female or Male, is performing oral sex on you when you are taking a shit on the toilet. Grumpkin is mistaken for the word Blumpkin, because of the Movie "Harold and Kumar."

Grumpkin

grumpkin by The Theoretically Correct May 20, 2009

Grumpkin 

A twist and flick of the balls while receiving a blowjob, thus making the person grumpy.

Garrett was getting a BJ when Amy decided to bust out the grumpkin.

Grumpkin by sqwirll April 14, 2009

grumpkin 

a short, trollish, bitch that everyone hates. She's annoying, ugly, and the kinda girl you would love to punch in the face...repeatedly.

Brandon's girlfriend is such a grumpkin.

grumpkin by clayton September 20, 2004