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.
by Joe March 01, 2005
After Intercourse seamen is placed on the females face, and then pubes are placed on top.
The grumpkin is the face your partner makes after the following.
The grumpkin is the face your partner makes after the following.
by Chase Magee April 28, 2005
The anonymous old man - most likely suffering from some form of dementia - who takes a shit in the sink of public restrooms
by Betty Wagaman October 16, 2006
by Brian December 05, 2003
by cuffnutt July 30, 2007
by Smittywerbenyagerbenjenson April 27, 2008
by Bradford, PA March 03, 2011