by dirty sanchez June 14, 2003
A sex session in which one sits on a toilet taking a shit while another person gives the shitter a blow job
by Yanni's Flamboyant Friend December 24, 2002
The game of giving a girl spicy food then having anal sex with her. Then the male would punch the woman in the stomach and scream "GRUMPKINS!" and pulling out before fecal matter lands on the penis. If fecal matter does land on the male penis then the male loses.
by Mike Ockhertz December 08, 2009
by Evil Scott December 11, 2008
by sqwirll April 14, 2009
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!"
by J Jayma Jameson August 12, 2011
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."
by The Theoretically Correct May 20, 2009