grumpkie 

when a girl or guy gives another guy a blowjob while he is taking a dump.

grumpkie by Steve Duckworth October 28, 2003

grossie grumpkins

The anonymous old man - most likely suffering from some form of dementia - who takes a shit in the sink of public restrooms

Don't go into the bathroom, Bob. It looks like Grossie Grumpkins struck again.

grossie grumpkins by Betty Wagaman October 15, 2006

Sankaty Grumpkin 

Pro staff getting head while dropping a deuce in the cart barn bathroom by a first year caddie!!

I'm very stressed. I think I need a sankaty grumpkin after the epic pick.

Sankaty Grumpkin by cuffnutt August 3, 2007

thumpy grumpkin 

When you recieve a blumpkin from your grandma while your rabbit eats a carrot

I got the best thumpy grumpkin of my life from grandma Bernie

thumpy grumpkin by Smittywerbenyagerbenjenson April 26, 2008

grumpied 

to have defecated somewhere

I just grumpied all over the place

grumpied by Mikey May 13, 2005

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