1 definition by Take it to the Stallion

Top Definition
Jem
A 'truly outrageous' unit of measurement for female ejaculate equivalent to a 10th of a pint or 12.8 fluid ounces (US) / 380 ml produced through vigorous fingerbanging.
I'm mining for jems.
I had to mop up at least a jem from the floor.
She must be dehydrated after giving out three jems
I was disappointed that I only managed a midget jem
by Take it to the Stallion January 20, 2011

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