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The Grundle Tickler is a sex move used only by those that have abnormally dexterous fingers and a passion for excelling at creating the beast with two backs.

It involves making a fist and fully extending the ring finger (as if it were the middle finger in a classic "fuck you!"), then articulating the extended ring finger, AND ONLY THE RING FINGER, in a "come hither" motion, where the tip of the ring finger would be stroking, or, "Tickling" your partners grundle.
Ya know, I wasn't really in the mood to get gutted last night, but when Mark broke out the Grundle Tickler after we had been making out, I couldn't bend over fast enough!
by The Concrete Block December 13, 2010
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