Top Definition
When performing anal cunnilingus, the muncher receives a surprise of a small nugget(not to be confused with a poop) or gem if you will, into their mouth without notice and get's a taste.
To get back at my public school priest, i gave him a sneaky gem as he "inspected the rear quadrant of my robe".
by Mike Lennox April 14, 2006
5 Words related to sneaky gem

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