by Pdiddy April 29, 2003

The flap of skin, in males, between the scrotum and the anus, which can be used for various things such as clipping flashing lights to. Grundlesac's can vary in size from droopy to so small that they can barely be noticed.
Damn Alex, that is so sweet how you can clip that pulsing belly button ring to your giant grundlesac.
by pdiddy July 12, 2004

noun- ejaculate after it has cooled to room temperature and began to congeal, either from male or female donors.
by PDiddy October 27, 2004

by pdiddy April 24, 2003

by Pdiddy January 20, 2004

To enroll in a class, show up to the first two months of the class, then willingly withdrawal from the class. Oftentimes a person is inclinded to reichmanning the same class over and over again.
Ya you know, I was gonna graduate early, but then I had to take quantum physics, and all I could do was Reichmann it.
by PDiddy May 13, 2005

by PDiddy January 28, 2015
