It's actually where you get a girl to swallow a load of semen, then you punch her really hard in the stomach and she throws up on ur dick.
Ya that bitch was suckin my dick so hard but she bit it, so i gave her a grumpkin...and she puked out her lunch.
the act of shitting while recieving fellacio
man she sucked me dry while i dropped a loaf!
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"
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.
I didn't Pull out in time so i lost grumpkins
recieving head while in the process of shitting.
"That bitch was so nasty she gave me grumpkins!"
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!"
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."
Blumpkin from a Solid gold robot
Steve: Dude, I was on the Blumpkin Bus yesterday and i totally got Multiple Grumpkins from that Solid gold Hobot